McConaughey and Witherspoon on Ellen DeGeneres Show this Thursday

Matthew McConaughey’s first celebrity crush is actually someone he knows all too well. On Thursday's Ellen DeGeneres Show, the Sing 2 actor is joined by his co-star and friend, Reese Witherspoon.

McConaughey and Witherspoon on Ellen DeGeneres Show this Thursday

During a lightning round of questions, the host asks the pair to confess their first celebrity crushes. "Jim Morrison from The Doors," Witherspoon says. “The Doors movie had just come out and I was like, ‘He’s so hot.’”

McConaughey and Witherspoon on Ellen DeGeneres Show this Thursday

In a hilarious slip-up, Witherspoon realizes that it wasn’t the actual Jim Morrison she was crushing on, but Val Kilmer, who played the late rocker in the 1991 film.

McConaughey and Witherspoon on Ellen DeGeneres Show this Thursday

Finally, it’s McConaughey’s turn to answer. “I did have a little bit of a crush on the young lady sitting to the left of me from Man in the Moon,” the actor says, referencing his pal. “That was one of my early crushes.”

McConaughey and Witherspoon on Ellen DeGeneres Show this Thursday

A shocked Witherspoon can’t believe it as a still from the 1991 film flashes behind her. “If you see the movie, you’ll see,” McConaughey adds. “What's not to have a crush on? True story.”

McConaughey and Witherspoon on Ellen DeGeneres Show this Thursday

It’s clear McConaughey has always kept things cool. In 2012, the Oscar-winning actor went on to marry Camila Alves, with whom he shares three children, Levi, 13, Vida, 11 and Livingston, 8.

McConaughey and Witherspoon on Ellen DeGeneres Show this Thursday

Meanwhile, Witherspoon is currently married to Jim Toth, and they are parents to 9-year-old son Tennessee. The actress is also mom to Ava and Deacon, from her previous relationship with Ryan Phillippe.

McConaughey and Witherspoon on Ellen DeGeneres Show this Thursday

While chatting with DeGeneres, the pair recall meeting each other when Witherspoon won her Oscar in 2006.

McConaughey and Witherspoon on Ellen DeGeneres Show this Thursday

But despite sharing a celebratory drink together at the ceremony, Witherspoon notes it was her wedding day to Toth where McConaughey really found a place in her heart.

McConaughey and Witherspoon on Ellen DeGeneres Show this Thursday

“The day that he stole my heart and everyone’s heart in my personal life was when he danced with every woman that was over the age of 65 at my wedding,” the Legally Blonde star says. “That's who this person is. I mean, my mother might have died.”