Lupe Fiasco's long-delayed 'Lasers' album will finally be released on March 8, and the Chi-Town emcee has announced a free show in Brooklyn on Sunday (Feb. 27) to thank fans for their support.

"For all my nyc fans that came to union square to see the laser show. i got something for ya!!!," he tweeted, along with a link that allowed fans to submit their e-mail addresses and RSVP for the show. "Walmart Soundcheck presents Lupe Fiasco. Music Hall of Williamsburg. This Sunday 2/27. Show starts at 8PM. Sign up for this exclusive performance. Space is limited!"

In addition to the impromptu Williamsburg concert, Lupe is also scheduled to play three upcoming shows in New York City. He will perform at Blue Note on Feb. 25 and 26, and a Mar. 7 show at Webster Hall. In the past month leading up to the release of 'Lasers,' Fiasco has released two new single. 'All Black Everything' premiered on iTunes earlier this week, while 'Words I Never Said' featuring Skylar Grey.

Listen to Lupe Fiasco's 'Words I Never Said'