Kanye West may have been the headliner at Bonnaroo Friday night in Tennessee ... but Kim Kardashian's mom boobs totally stole the show. Kanye returned to the annual festival last night with his new bride in tow and Mrs. West's rack was proudly on display while 80k people watched Yeezus perform. According to reports Kanye stuck to his normal schtick during the gig, ranting about how he wants to become a timeless icon like Walt Disney and Shakespeare. With boobs like that, Kim might beat him to it.