rihanna*She may have been five hours late, but Rihanna eventually did drop in on high school students in a northwestern Chicago suburb.

Friday’s visit to Barrington High School came about as a reward for winning the singer’s “Shine Bright Like a Diamond” video contest.

The five-minute, student-produced video highlighted the school’s volunteer and community service programs.

The Chicago Sun-Times says Rihanna told students she admired their passion and volunteerism.

As we said above she was more than five hours late, reports the Chicago Sun-Times, but those who somehow hung around, said she was worth the wait.

RiRi also posed for photos before heading off to her Friday night concert at Chicago’s United Center.

Barrington freshman Nisha Ali says “the fact that she came here and thanked us was a huge deal.” rihanna

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See more photos from the event at the Chicago Sun-Times.