He travelled to Serbia to celebrate his girlfriend's birthday
A historic day and...it HAD to be the 13th!
Milwaukee Bucks shared the video on their Twitter account
Giannis leading his team to consecutive wins
"Yes, tomorrow I’m 53. So!?" she wrote
The singer's backup dancers strapped the soccer star to a big chair
The Hollywood star is on the island of Antiparos
She celebrated her 33rd birthday
Anastasia Karanikolaou "basically lived with me growing up and it was the 3 of us always"