A music video from the late 90s early 00s I Think All I can remember is that is takes place in a convenience store and the singer is black or mixed it's an alternative rock song HELP?

The music video you're thinking of might be "Steal My Sunshine" by Len, which features a laid-back vibe and scenes from a convenience store. Another possibility is "Fell in Love with a Girl" by The White Stripes, though it's more garage rock. If it's specifically an alternative rock song featuring a black or mixed artist, you might also consider "Crawling" by Linkin Park, though the setting differs. If you have any more details, I’d be happy to help refine the search!