After snagging MVP honors last week at the celebrity All-Star game in Los Angeles, Justin Bieber is making headlines again--this time for the simple act of cutting his hair.

Early Monday, Bieber Tweeted, "thinking about getting a haircut....hmmmmmm." And soon after, Bieber revealed his a 'do on the set of TMZ Live. He told TMZ his hair was trimmed earlier in the day while on the set of a music video for a song he recorded with Rascal Flatts.

Bieber's regular stylist Vanessa Price did the cut. And though he was initially nervous about snipping his locks, Bieber admitted he "wanted to change it up" and once complete, that it was "kind of a mature look."

The teen pop sensation debuted shorter hair earlier this month on the covers of The Hollywood Reporter and Rolling Stone. But Monday's look seemed a little more unruly. See more photos at TMZ.com.