*Gabrielle Union is going on a world tour (‘world’ being a bit of an exaggeration, here), celebrating her 40th birthday.

Gabrielle Union, Chantel Christopher & Friend

Over the weekend, she celebrated her birthday in Miami with a private birthday bash (later, she partied at a Miami night club, where Will Smith hopped on the mic for an impromptu set), pajamas required!

Gabby and friends wore their pj’s and sang happy birthday.

We spotted Gabby’s boo, D.Wade, Jason Bolden, Lindsay Faulk, Savannah Brinson (Lebron James’ fiance), Chantel Christopher (Rocsi Diaz’s manager) and Ricky Williams.

Peep some of the pix.

For more photos of Gabrielle Union’s pajama birthday bash, visit theJasmineBrand.com.