The happy couple partied with their pals, singing some classic tunes and having a great time.
The 39-year-old actor also opened up to ET about girlfriend Katy Perry at Unicef's 70th Anniversary event on Monday.
The star opened up about how his 5-year-old son, Flynn, has made him more compassionate and praised girlfriend Katy Perry for her work with UNICEF.
Here are 14 instances when the stars made us swoon this year.
The pop star was joined by her actor beau on Tuesday in New York City, where she was honored at UNICEF's annual Snowflake Ball.
One day after sparking engagement rumors the cute couple attended the UNICEF Snowflake Ball in NYC, where Perry was a guest of honor.
There seem to be major fireworks for Katy and Orlando. Could it be after 10 months of dating the pair is engaged?
ET has obtained exclusive pics of the 'Rise' singer wearing a huge oval cut diamond on that finger.
Katy Perry loves a theme.
The stars are feeling thankful this holiday season.
Here's how your favorite stars celebrated their Thanksgiving holiday!
The 'Roar' singer can wear sequined stars and stripes with the best of them -- plus check out her 'Madam President' cape!
The model says she struggled with depression after the former couple parted ways in 2013.
