Nicole Muxo, a senior at Archbishop Coleman Carroll High School, had asked Wade to be her prom date for Friday night, but he hadn't responded, The Miami Herald reported. Muxo, who said Wade is her favorite player and "a positive role model," had asked Wade in a YouTube video -- which took her a week to make -- to be her date for the prom.
"My senior prom is coming up and I have everything set for a perfect night except for one thing: a perfect date," she said in the video.
She followed up Thursday with a Twitter message: "This is the address, this is where I'm going to be, just in case."
Had the Heat not eliminated the Chicago Bulls from the playoffs Wednesday, Wade would have been otherwise occupied on Muxo's prom night.
"When I got (her invitation), I said, 'I won't be doing anything tomorrow night and I can go and make this a memorable moment for her,'" said Wade, who showed up at the prom at around 9:30.
A few moments before walking into the prom, Wade called Muxo to tell her to have a good night, but he didn't say he was right outside, the Herald reported.
Muxo's prom date, Laurent Chaumin, was a good sport, saying, "At least we both know how to dress."
Wade danced with Muxo and stayed at the prom for around 45 minutes, the Herald said.
"I had a blast at Prom. Never be too scared to ask," Wade posted on Twitter afterward.