The Clash are a punk band out of the UK formed in 1977. No Doubt lists them as one of their greatest influences. Currently, there is no official site on the Clash, or really any sites of great structure that I will give you a link to. But I do suggest www.yahoo.com. The tribute album is awesome, and I highly recommend it. Below is a list of the artists and the song which they covered on the album, in the exact order. As you can see, the list is very impressive. No Doubt's performance as the album's opener is awesome, and received great reviews. Also, Billy Idol sings additional vocals for them on the tribute. At the bottom of the page, you will find two links which go to album reviews--very positive I might add.