Kevin Winters/Billboard Awards via Getty Images

5SOS Slay The Billboard Music Awards... Kendall Jenner? Not So Much

They rocked 'She Looks So Perfect,' questionable intro and all.

So, it looks like Kendall Jenner had a bit of a prompter mix-up while introducing 5 Seconds Of Summer at the 2014 Billboard Music Awards tonight.

After nearly announcing the Australian pop-rock band as "One..." before cutting herself off, the "Keeping Up With The Kardashians" star self-deprecatingly joked: "You guys, I'm the worst reader."

And, you know what? More power to her. I'm not the greatest interpretive dancer on the scene, but just try telling that to, like, MY BODY when "Chandelier" comes on.

Kevin Winters/Billboard Awards via Getty Images

Anyway, 5SOS obviously nailed it onstage at the Las Vegas MGM Grand Garden Arena, performing their Song of the Summer-worthy single, "She Looks So Perfect."

Calum and Luke's tag-teamed vocals were on point, Mikey was just in the zone as he hopped all over the stage, and Ash was doing some drumstick tricks that would've epically failed in lesser hands.

Honestly, my only complaint is that they didn't perform in their American Apparel underwear. Anytime, guys! Anytime.

Look for 5 Seconds Of Summer's self-titled debut album when it drops stateside on July 22. That's 5 Seconds Of Summer, Kendall.

Gratuitous 5SOS GIF fest!