Michael Phelps is the most decorated Olympian EVER!
So if anyone has earned their retirement, it's definitely him.
He hung out with friends, Olympians and a giant cake decorated with 22 medals, for the 22 overall medals he won throughout his storied career. (18 of them are gold!)
He later moved from the pool to Surrender Nightclub where he hung out with fellow Olympic swimmer and training partner Allison Schmitt, poker star Phil Hellmuth and Afrojack in the DJ booth.
He grabbed the mic and yelled to the crowd:
"This is my first night of retirement at Surrender!"
The crowd obviously went crazy.
We're sure there were chants of USA! USA! USA!
Congrats on the retirement!
[Image via Retna LTD.]