Sweethead is an American alternative rock band formed in 2008. The group's lineup consists of singer Serrina Sims and guitarist/multi-instrumentalist Troy Van Leeuwen. For recording and touring they are joined by a variety of guest musicians, many of which are current or former members of Queens of the Stone Age or Mark Lanegan Band.

Troy Van Leeuwen is an American musician and record producer. He is best known as a guitarist and multi-instrumentalist in the rock band Queens of the Stone Age, with whom he has recorded five studio albums. Joining the band in 2002, he is the second-longest-serving member of the band, after founding member Josh Homme. Van Leeuwen is also a member of the supergroup Gone Is Gone and has fronted his own projects, Enemy and Sweethead.