Tuesday, March 8, 2011 - We spotted Paul Anka walking in Beverly Hills and asked him if he'd consider doing a duet with Charlie Sheen. The legendary singer laughed and said, "Doing what?!" On Kim Kardashian's new single, Anka commented, "It's a great country for entrepreneurs and they've certainly done that, but I can't give you any critique on the single. Frankly, I haven't heard it so I can't give you an honest answer."