( CNN ) -- The rumor blowing up Saturday was that Day 2 of the Coachella Valley Music & Arts Festival could feature a surprise appearance by electronica icons Daft Punk . According to the Twitterverse , it would probably take place during the set of headliners Phoenix . But when the special guest finally materialized on the main stage , it was n't Daft Punk , it was R. Kelly . Yes , that R. Kelly . The controversial R & B legend 's unexpected appearance prompted festival-goer Katy Perry to reference last year 's popular Tupac appearance on Twitter : `` Production value has really gone up at ( Coachella ) , it felt like R. Kelly was really there ! # rkellyhologram '' Taking the stage near the end of night , Kelly joined the headliners for a mashup of their `` 1901 '' and his `` Ignition . '' Kelly was n't the only R & B artist to make a cameo at Coachella on Saturday . John Legend premiered his Benny Benassi-produced single `` Dance the Pain Away '' in the Sahara tent during the DJ 's set , and Solange made a guest appearance during the performance of her friends the xx . Their special Coachella remix of their cover of Aaliyah 's `` Hot Like Fire '' and Solange 's `` Locked in Closets '' injected an upbeat energy into an otherwise moody set . Other Saturday crowd-pleasers included the Violent Femmes , who had fans dancing and singing along to their 1983 hits `` Blister in the Sun , '' `` Kiss Off '' and `` Add It Up . '' Although the songs were released before most of the festival-goers were born , they were familiar because of their ubiquitous presence on Los Angeles radio station KROQ . Another Day 2 favorite was 2 Chainz , the Georgia rapper best known for the tracks `` I 'm Different '' and `` Birthday Song . '' Coachella organizers obviously underestimated his rabid fan base , and instead of slotting him onto the main stage , they relegated him to a much smaller tent . Admirers spilled out the back and sides of the tent as puffy clouds of smoke rose from the crowd . Moby made his first appearance at Coachella since 1999 , the festival 's debut year . Even though he 's branched out as a musician in recent years , he returned to his DJ roots , playing the dance tent accompanied by visuals of outer space -- courtesy of his friends at NASA . `` When I was growing up , I was obsessed with science fiction , '' he said . `` And then I became obsessed with space and science , but I was a college dropout , so I was never smart enough to be a scientist . As a musician , I 've made friends with people at NASA , so every couple of years , I find myself doing something with them . This is my hometown festival in some ways , and I only get nervous performing when I know people in the audience . '' On the flip side , Janelle Monae trotted out her retro soul revue . The singer/funktress was eager to kick off her debut . `` I 've heard a lot about the festival . This is my first time , so I 'm excited about giving -- and having -- an experience that will be unforgettable . '' To close the festival Sunday night , the Red Hot Chili Peppers returned for their third time headlining Coachella .
R. Kelly made a surprise appearance at Solange during Phoenix 's set . They performed their hits `` 1901 '' and 1901 R. Kelly , Coachella and 2 Chainz .