Big Sean does surprise free show at The Fillmore

Big Sean performs the song Big Bidness from his new album "Double or Nothing" at The Fillmore.

Big Sean interacts with the people in the crowd.

Big Sean smiles at the people at the front of the stage.

Big Sean performs a song from his new album "Double or Nothing."

Fans listen and try to capture part of the show.

Big Sean, left, performs a song from his new album "Double or Nothing".

Big Sean about to wipe sweat from his brow between songs.

Big Sean performs a free show in celebration of his new album "Double or Nothing."

Big Sean performs a free show in celebration of his new album "Double or Nothing."

Big Sean, left, performs during his free show in celebration of his new album "Double or Nothing".

Big Sean performs a song from his new album during his free concert.

Big Sean at The Fillmore.

Big Sean performs a song from his new album at The Fillmore.

Stewe Clarke, a late night DJ on 107.5 FM before the show.

Fans sing along with a selection by DJ Beatz before Big Sean takes the stage.

FMD DZ performs before Big Sean takes the stage at a free concert.

Fans during one of the opening artists.

This is the marquee for the Big Sean concert at The Fillmore in Detroit.

Jackson Gurman, 17, left, and Jayden Hanna, 17, both of Bloomfield Hills got in line at 3 p.m.

A once calm crowd starts jamming in the doors once they open for the Big Sean concert.

Wrapped in a blanket, Ayshia Newcomer, 22, left, and Kania Harris, 22, both of Pontiac wait in line to get a wristband which equals a ticket and will get them into the Big Sean concert at The Fillmore in Detroit on Dec. 10, 2017. Free tickets were given to fans with proof of purchase of "Double or Nothing" on their phone.

People stand in line along Elizabeth Street to get a wristband which will get them into the Big Sean concert at The Fillmore Sunday.

Acacia Jemison, 23, of Port Huron, left, gets her wristband in line on Elizabeth Street.

Jordan Wright, 22, right, of Ann Arbor gets her wristband in line on Elizabeth Street.

Winda Nasser of Detroit, center, gets her wristband on Elizabeth Street.

Vendor Brian O'Neill sells Big Sean merchandise inside The Fillmore Sunday afternoon.

LaVonte Verdell, 22, right, of Ann Arbor, and Jordan Wright, 22, of Ann Arbor get their wristbands.