There are multiple artists with the name IQ:
1) A British progressive rock band
2) A hard house act.
3) An Australian synth band
4) A US female group
5) A Serbian band.
6) A Russian underground rapper. 1)
Born in the UK in the '70s as The Lens, IQ remained, with Marillion, one of the very few progressive rock artists in the '80s. The style of their earlier material drew constant comparisons to that of groups like Genesis, but the band has always rejected the 'neo-progressive' tag bestowed upon them.

Read more about IQ on Last.fm.