Music Psychologists from Western Washington University have conducted a study on catchy songs, and have found a way to remove all those pesky tunes from inside your head. Researchers claim that the best way to get rid of an "earworm" is to solve anagrams, but reading a novel or doing a difficult Sudoku puzzle will also do the trick. The study also figured out which artist's songs are most likely to embed themselves in your brain. Can you guess which ones???