"It's a Summer Thang" is the title of a rap/R&B single by M-Doc featuring Chantay Savage, and Stevio from the 1995 album M. Doc Wit Stevio: C'mon Getcha Groove On.
It was the first single from his album of the same title.
[1] Billboard called it "a radio friendly ditty, complemented by Savage's sassy vocalizing".
[2] The music video was filmed in Chicago in 1994.