Zac Efron flew to Rio to surprise Simone Biles

Zac Efron wins the gold medal for inspiring adorable selfies. Photos from his surprise visit to Simone Biles and other U.S. gymnasts in Rio are the cutest things ever.

Biles revealed during a visit to Ellen DeGeneres' talk show earlier this year that Efron was her crush. The two shared a slew of cute Twitter messages after that revelation and Efron thrilled his Olympic idol and her colleagues in Rio.

"Surprise!" he wrote with the above photo.

MORE: Five things to know about Simone Biles

Check out these adorable clips and pix!