Viral-video sensation Rebecca Black has emerged after a bit of an Internet hiatus with a brand-new cover of Miley Cyrus' salacious summertime hit "We Can't Stop." Nicki Minaj officially joined Instagram and so far we're loving the very entertaining (and borderline NSFW) glimpses into her daily life. The "Super Bass" rapper shared a few sexy snaps of her getting handsy with some adult entertainers on Monday morning, writing "I endorse these strippers" Justin Bieber sparked chaos at a mall in Omaha, Nebraska after leading fans to believe he was making a surprise appearance at the shopping center in a series of posts on Twitter. The pop superstar, who was in the city ahead of his concert at the CenturyLink Center that night, sent his online followers into a frenzy after appearing to suggest that he was making a return to the local Westroads Mall, where he had previously shot a viral video which ended up being included in his ?Never Say Never? concert movie.