Niall Horan, Ariana Grande Dating Rumors: Big Sean's Ex-Girlfriend Parties w/ One Direction's Irish Heartthrob

New photos of pop singer Niall Horan of One Direction and songstress Ariana Grande hanging out together have reignited more dating rumors than we can keep track of. Big Sean's ex-girlfriend was spotted hanging out with Horan once again, this time at a friend's group birthday celebration in Barcelona, which has us wondering why the Irish heartthrob went literally thousands of miles out of his way to spend time with the "Problem" singer. Perhaps they're really just friends, though! Read more on this news below. Read More »