To be fair, he's still missing sleeves. MM was surprisingly covered up leaving the gym in Malibu on Thursday. And look, he's got a fancy headband to hold back those wild locks. This is literally the first time since May we've seen Matty with a shirt on and I will say that it's a little unnerving. Could it be that GF Camila is convincing Matthew to give up his shirtless ways as well as his Airstream? Ha, not likely.