Celebrity Scramble Guess Who!

Behind this altered image are two highly accoladed stars who are set to take the stage at this year's Grammys, but it's been a hot minute since one of these singers released new music. You may need to "Turn The Lights Back On" to see them shine in the spotlight!

Yes, there's a 50+ year age gap between these two musicians, but with both of them being Grammy winners ... it came to no surprise their performance at Madison Square Garden was legendary!