If you’re the betting kind, Vegas bookies have started laying odds on who'll be crowned champion of this season’s American Idol. As of right now, Scotty McCreery seems to be the favorite.

Tonight, the Top 5 take on both a current song and one from the '60s. Sheryl Crow is the guest mentor, and Gwen Stefani will be a special "style mentor."

American Idol winner odds (as of 5/3)

  • Scotty McCreery: 7-5
  • James Durbin: 9-5
  • Lauren Alaina: 4-1
  • Haley Reinhart: 8-1
  • Jacob Lusk: 25-1