After attaining mainstream success, Cobain became a devoted champion of lesser known indie bands, covering songs by The Vaselines, Meat Puppets, Wipers and Fang onstage and/or in the studio, wearing Daniel Johnston T-shirts during photo shoots, having the K Records logo tattooed on his forearm, and enlisting bands like Butthole Surfers, Shonen Knife, Chokebore and Half Japanese along for the "In Utero" tour in late 1993 and early 1994. Cobain even invited his favorite musicians to perform with him: ex-Germs guitarist Pat Smear joined the band in 1993, and the Meat Puppets appeared onstage during Nirvana's 1993 "MTV Unplugged" appearance to perform three songs from their second album, "Meat Puppets II".