Cardi B and Offset Celebrate at Nightclub Following Migos/Drake Concert

Cardi B and Offset were out on the town Friday night -- LATE -- Migos performed with Drake at an L.A. concert.

The couple left Poppy in WeHo Saturday at around 2 AM ... mostly in silence, although Cardi was happily posing super hard for a slew of paparazzi.

Offset and crew performed at Staples Center to a packed house earlier in the evening.

We asked Cardi if her 26th birthday went off with a bang ... referring to her birthday wish that her husband put her in 30 different positions ... like a New York pretzel.