Festival-goers were treated to many perks as they arrived at Waterloo Park Saturday morning for Fun Fun Fun Fest.  Among them, a speedier willcall line than years past, free iPhone and iPod cases from sponsor Incase, a string of vendors offering up tasty treats, and of course, a wide array or musical offerings, poised to deliver a good time.  An early afternoon performance from Austin’s own L.A.X drew a sizable crowd for so early in the day, and managed to get many people dancing. The six-member dance hybrid group showed off their moves as well as their musical talent.  Altercation Comedy members JT Habersaat, Jake Flores and Joe Staats garnered laughs at the yellow stage for ripping on hipsters, UT football fans and the realities of being broke. The jokes seemed to strike a cord with much of the crowd. Ironic considering the UT tailgate, not to mention a packed stadium was only blocks away. The Austin-based group has toured regularly, often performing with other comedians and punk bands.  Vega and Neon Indian, both projects of Austin native Alan Palomo, performed on the blue stage only hours apart. While both projects produce danceable electro tunes, Neon Indian’s set was more psychedelic and hypnotic than the livelier Vega show.  Japanese noise-rockers Melt Banana whipped the black stage crowd into a frenzy with technical guitar work and lead singer Yasuko Onuki’s signature frantic screech. Brooklyn band Les Savy Fav gave what was arguably Saturday’s most inventive performance.  Lead singer Tim Harrison embraced his balding head and prominent gut, by strutting around on stage in everything from a reptilian mask paired with a wedding dress, to a pair of iridescent purple leggings, worn under blue brief-style underwear. Harrison also applied black and red face paint to himself, his band mates, and members of the crowd and press pit.  His onstage antics were extended into the audience further when he performed multiple stage-dives, one of which included a fully extended ladder being spread horizontally across the crowd so he could walk on top of it.  Yeasayer, Face to Face, 7 Seconds and Ratatat also delivered popular performances on Saturday.