According to today's UMHoops twitter feed, 2013 SG Austin Hatch has committed to play his college basketball at the University of Michigan. UMHoops also provides a very brief bio of Hatch on their website. Rivals lists Hatch as a 3-star player, but as we have seen with previous Beilein recruits, that may not mean much. I'm sure UMHoops will have a full commitment post up later today, so check their site for an update.
For now, this has only been reported by fellow Michigan recruit Monte Morris per Twitter. UMHoops trying to confirm. Sorry for jumping the gun.
It has been confirmed by UMHoops that Austin Hatch is the first commitment for John Beilein's 2013 class.
UMHoops also reporting, as suggested in the comments below by wlubd, that Michigan received a commitment from 2013 PF Mark Donnal. UMHoops provides their scouting report of him here.