3/29/2017 8:32 AM PDT
Lady Gaga stepped deeper into her dirty 30s by cleaning up real good — dressing to the nines and looking chic for her 31st birthday bash.
Gaga headed to dinner at Gjelina in Venice Tuesday for the star-studded event.
Elton John and Johnny Depp joined in … even if a little underdressed compared to the bday girl.
