David Lee Roth rose to prominence in the 1970s Los Angeles rock scene as the lead singer of Van Halen. In 1974 Roth rented his PA system to the brothers Edward and Alex Van Halen, and later joined their hard rock band as lead vocalist. Roth soon persuaded the Van Halen brothers to change the band's name from Rat Salade to Van Halen. (The group had also performed as Mammoth.) In the late 1970s, Van Halen developed a local following while playing the nightclubs on the Sunset Strip. In 1978, Roth sang lead vocals on Van Halen's eponymous first album. Van Halen is considered one of rock music's greatest debuts ? it quickly established the group as a commercial success, and is credited with establishing Los Angeles as popular music's unofficial capital during the 1980s and early-1990s. Soon after, Roth became well-known for his charisma, acrobatic showmanship, and outrageous off-stage behaviour. He became a media celebrity; his ribald witticisms were frequently quoted. Although often noted more for physical than for technical prowess, Roth's bluesy baritone voice and distinctive screams, along with his often humorous and campy lyrics, were integral to Van Halen's sound. Roth was able to take his voice into a multi-pitched wheeze/rasp, almost like a train whistle (see Throat singing), that few can imitate successfully.

1979 to 1984 saw Van Halen release five more albums: Van Halen II, Women and Children First, Fair Warning, Diver Down, and 1984 ? each to increasing popular success and critical acclaim. In 1983, Van Halen was paid $1,000,000 to play one set at the US Festival in California, and thus became one of the two highest paid bands in modern history, along with the festival's other headlining act, David Bowie. Van Halen achieved their greatest commercial success, including their first Billboard #1 single, (for the song Jump,) in 1984. Soon after, tensions boiled over between Roth and his bandmates. In early 1985, while still a member Van Halen, Roth released a solo EP of off-beat standards, which became wildly popular. Singles for Just a Gigolo/I Ain't Got Nobody, and California Girls succeeded largely due to their innovative music videos, which featured ridiculous characters created by Roth.

In April 1985, Roth either quit Van Halen or was fired, according to differing reports. Reportedly, tensions broke between Roth and guitarist Eddie Van Halen over Van Halen's desire to incorporate keyboards, synthesizers, and power ballads into the group's sound. In his 1998 autobiography, Crazy From the Heat, Roth characterized Van Halen's music just before his 1985 departure as "morose". Reportedly, Roth wished to record an album quickly, tour, and then shoot a movie (the ill-fated Crazy From the Heat), but found his bandmates apathetic, lethargic, and drunk. Roth also disliked Eddie Van Halen's behavior regarding his appearance on Michael Jackson's 1983 hit Beat It?Van Halen never told Roth that he had recorded the song, for fear that Roth would prevent him from releasing it. (Roth, however, contends in Crazy From The Heat that he had nothing against Van Halen's participation on "Beat It", and that it was a more worthy venue for the guitarist to guest on than the Nicolette Larson album Ed Van Halen did a cameo appearance on.) Still, the exact reasons for Roth's departure from Van Halen remain a mystery. Since 1985, Roth and his former bandmates have engaged in an acrimonious (if often colorful) feud that made has headlines for decades, and has become the subject of much popular debate and speculation.

In late-1985, Roth assembled a band that many considered a "supergroup", composed of guitarist Steve Vai, bass player Billy Sheehan and drummer Greg Bissonette. He later enlisted Van Halen producer Ted Templeman to produce the band's debut album. Eat'em and Smile saw Roth return to hard rock music, and met with considerable commercial success. The Eat'em and Smile Tour was one of the most successful concert tours of 1986.

Van Halen's first album with Sammy Hagar, Roth's replacement as lead vocalist, entitled 5150, met with greater commercial success than Eat'em and Smile. Van Halen titled their 1988 album OU812 (i.e. Oh, you ate one too?) to ridicule Eat 'Em And Smile.

In early-1988, Roth released Skyscraper, a more experimental album with a pop sound. Although it featured Roth's most famous original solo song, Just Like Paradise, Skyscraper met with a more tepid commercial response than anything Roth had released previously. Soon after Skyscraper's release, Billy Sheehan left Roth's band. Following the Skyscraper Tour, Steve Vai left.

In 1991, Roth released A Little Ain't Enough, a basic hard rock album, produced by Bob Rock; it achieved RIAA Gold status. Twenty-year old guitar prodigy Jason Becker played on the album, but was diagnosed with Lou Gehrig's disease shortly before the accompanying arena tour, and was replaced by Joe Holmes. The stage for the A Little Ain't Enough tour featured statues that spat vodka at Roth's audience, and a pair of giant, inflatable, legs, positioned 'spread-eagle', wearing ripped, fishnet stockings. Musical tastes changed dramatically at about 1991, with the arrival of grunge music, hence Roth's tour did not sell out many venues, as in the past.

In 1993, Roth was arrested in New York City's Washington Square Park, for buying what he once described as, "$10 worth of Jamaican, bunk reefer," from an undercover police officer. The arrest made headlines, and became a late-night television punch-line.

In 1994, Roth released Your Filthy Little Mouth, an eclectic, lyrically intricate album produced by Nile Rodgers. It combined elements of rock, country, reggae, hip-hop, lounge, and others; for example, it included the song "Cheating Heart Cafe", a duet with the popular country singer Travis Tritt. It did not sell well, failng to achieve Gold status. Roth then began to perform at smaller venues in the U.S.

In 1995, Roth devised and performed an adult lounge act, largely in Las Vegas casinos, with a brass band that featured Nile Rodgers, Edgar Winter, and members of the Miami Sound Machine. It also featured several exotic dancers, who in Roth's words were "so sweet, I bet they s(p)it sugar!"

In June 1996, Roth collaborated with Van Halen to great public fanfare. He recorded two songs with Van Halen for their Best of Vol. 1 album (Can't Get This Stuff No More and Me Wise Magic). After an infamous promo appearance on September 5, 1996, at the MTV Video Music Awards during which Roth and Eddie Van Halen reportedly threatened each other, Roth was passed over for Van Halen's lead vocalist job in favor of Gary Cherone (whose previous band Extreme had opened for Roth in 1991).

In 1997, Roth wrote a well-received memoir, entitled Crazy From the Heat.

In 2001, rumors swirled that Roth and the members of Van Halen had recorded a few songs together, and were in the process of attempting yet another reunion. Roth later confirmed this, but nothing became of the music. A box set was rumored but never happened. Instead, Warner Bros. rereleased all six early Van Halen studio albums, remastered.

In 2002, Roth's Heavyweights of Rock and Roll tour with Sammy Hagar succeeded beyond expectations and revived his career. Despite this, Roth's future with Van Halen remains uncertain. The recent Van Halen/Hagar reunion seems to imply that Roth won't reunite with them anytime soon.

In 2003, Roth released Diamond Dave, an album of (mostly) classic rock cover songs (If 6 Was 9, Soul Kitchen, and a solo/big band version of Ice Cream Man).

On July 4, 2004, Roth performed with the Boston Pops at Boston's annual Pops Goes the Fourth celebration. According to news reports in July 2004, Roth relocated to New York City where he became a certified emergency medical technician. In July 2005 it was reported that Roth would be replacing Howard Stern on his syndicated radio show when Stern moves to satellite radio. The following October, Infinity Broadcasting partially confirmed the report saying that Stern would be replaced by Roth on some of their stations (notably New York City, Boston, and Philadelphia) but would be replaced by other means including Adam Carolla, CNN and Jack FM on other stations.

--Wikipedia