Yep, the Biebs' totally swooned over the tight-jeans wearing cowboy singer during a skit for the awards show. Before Luke accepted one of his awards, Bieber and Late Late Show host James Corden appeared in a cute video in which the two gushed about the country heartthrob.
"Why are you going to the CMT Music Awards?" James, pretending to be a "Guuber" driver (the fake Nashville version of the car service, Uber), asked Bieber.
"Want me to be honest with you? I love Luke Bryan," replied Justin. "I get lost in his eyes like they're pools of the ocean," James added, before they both busted into their "favorite" Luke song.
Can you guess which one it was? "Country Girl (Shake It for Me)," of course!
Shortly after the video aired, Luke grabbed the award for Male Video of the Year. Before he thanked everyone, he let out, "Bieber loves me."
Watch the adorableness below.
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Gallery | 2015 CMT Music Awards: Arrivals