Love him or hate him, Justin Bieber knows what his chief assets are. The pop singer surprised viewers of CBS' Fashion Rocks benefit last night by stripping off his clothes live on stage.

On stage to introduce Rita Ora, Bieber stole focus by taking off his jacket, shirt and pants, asking co-presenter Lara Stone, "Is that better?" He then flexed in his red-and-black Calvin Klein boxers as audience members both booed and cheered.

Related: Zac Efron Goes Shirtless At MTV Movie Awards

Later, Bieber went on Twitter and thanked Fashion Rocks for having him. He added a Vine of his strip, with some sage words from his nana.

Grandma always said kill 'em with kindness...and then strip on live national tv. Lol. https://t.co/bKbeDJVsqJ

— Justin Bieber (@justinbieber) September 10, 2014

You might think the whole incident bizarre (and, yeah, it kinda was) but let's remember it was Rita Ora who tore open Zac Efron's shirt at the MTV Movie Awards. Justin is just upping the stakes—or auditioning for Chippendales.

Related: Naked Justin Bieber Surprises His Grandma

Below, watch Justin Bieber on CBS' Fashion Rocks.