An In Real Life superfan got the surprise of a lifetime live on the radio, thanks to member Sergio Calderon and a little help from Ryan Seacrest!

Diana, a hardcore Lifeline, was chatting away to Ryan about what the group meant to her when all of a sudden Sergio chimed in, and her reaction was so adorable.

Listen to the heartwarming moment below!

Listen to the group’s new holiday songs here!

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