The rapper wrote a series of messages on Twitter suggesting a hook-up with GaGa, known to her fans as "Mother Monster".
"When Mother Monster calls ..........," Banks said on the site this morning (August 21).
"S**t is about to get very f**king real. I'm going to Honolulu tomorrow. This vacation is now null and void."
In April, Banks signed a new management deal with Troy Carter - who personally manages Lady GaGa - but the two later parted ways.
Banks plays the Reading and Leeds Festivals in England this weekend.