Kid Rock's relationship with girlfriend May Anderson is in jeopardy amid mounting speculation the model has cheated on him. The rap/rocker - who has been charged following an assault on drummer Tommy Lee at the MTV Video Music Awards last week (begs10Sep07) - began dating Danish Anderson in March (07). But according to U.S. reports, May has been seen "getting cosy" with Calvin Klein underwear model Jamie Burke in New York. According to New York gossip column, PageSix.com, the couple was "getting very cosy on the couch . . . even though Jamie was wasted. "They've been seeing each other every night since, and spent the night together after a Calvin Klein party."