'American Idol' winner Caleb Johnson joins runner-up Jena Irene at her high school prom

Caleb Johnson and Jena Irene talk about their American Idol experience before attending her North Farmington High School Prom.

DEARBORN, Mich. — Big-voiced rocker Caleb Johnson, the winner of season 13 of “American Idol,” joined runner-up Jena Irene at her high school prom in suburban Detroit.

The Detroit Free Press and The Detroit News report they were among hundreds attending the North Farmington High School prom Wednesday night at Dearborn Inn.

The 17-year-old Irene is from Farmington Hills. The pop singer says Johnson is “awesome” and the Fox show competitors are “best friends.”

The 23-year-old Johnson is from Asheville, North Carolina. His “American Idol” win came on the strength of his renditions of “Dream On,” ‘‘Maybe I’m Amazed” and “As Long as You Love Me.” Irene sang “Dog Days Are Over,” ‘‘Can’t Help Falling in Love” and “We Are One.”