The dads-to-be pose with guests, including Jesse's Modern Family co-stars Sarah Hyland and Sofia Vergara, and Real Housewives of Beverly Hills star Lisa Rinna.
Everyone was impressed with the synchronized swimmers.
Colton Haynes posted this video of the synchronized swimmers.
The synchronized swimmers showcase their dance moves out of the pool.
Lisa Rinna was particularly impressed.
The dads-to-be pose for pics in the photo booth with Sarah Hyland.
Sarah Hyland cheers on the synchronized swimmers and dancers.