Rob Gronkowski shaves head to support children with cancer

Rob Gronkowski has gained the reputation of a fun-loving party animal thanks to antics like this. However, on Sunday, the Patriots tight end showed us another side of him.

Gronkowski shaved his head as part of Buzz Off for kids to benefit the pediatric cancer foundation One Mission. After getting his hair cut, Gronkowski used the clippers and played barber for others. The event took place at Gillette Stadium and had over 1,000 participants, according to the foundation.

For comparison purposes, Gronkowski posted a before and after photo via his Twitter account.

Before & after pics from the Buzz Off!! #WhateverItTakes #buzzforkids @buzzforkids pic.twitter.com/vr9RNiWIx7

— Rob Gronkowski (@RobGronkowski) June 7, 2015