Can you guess which star this throwback pic belongs to? Here's a hint: He's pictured in this hilarious TBT photo with his sister. He's in the Simba costume and his sister's wearing the Nala costume. (We guess they really loved The Lion King when they were little!) Need more hints? He's part of a group with a former Disney Channel star... Their single is on the radio all the time... It's called "Classic." Do you know who it is?
Double-click or highlight the black box for the answer: Malcolm Kelley from MKTO!