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2012 Democratic Convention: 'American Idol' Runner-Up Jessica Sanchez Rocks Charlotte (Video)

The petite season 11 powerhouse warmed up the crowd with a rousing Marvin Gaye cover, but not before scoring a photo-op with Olympic gold medalist Gabrielle Douglas.

American Idol
Michael Becker / FOX

American Idol contestants are making their voices heard this political season, and last night's Democratic National Convention featured the powerful pipes of season 11 runner-up Jessica Sanchez.

Sanchez, who tweeted last week that she "might not be old enough to vote, but I'm so honored and excited to perform at @BarackObama's big party in Charlotte next week," took the stage in a big way with a majestic cover of the Marvin Gaye classic, "You're All I Need to Get By."

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She was joined by the God's Appointed People Choir on a night that featured a rendition of the National Anthem with Branford Marsalis and a speech by the former President Bill Clinton. As a bonus, Sanchez rubbed shoulders with another teen celebrity -- Olympic Gold Medal Gymnast Gabrielle Douglas.

"Thank you so much for having me . It was an honor to perform tonight,"  the gracious 17-year-old Chula Vista, Calif. native tweeted on Wednesday night after the show. She also gave props to the choir, saying it was an "honor" sharing the convention stage.

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Other Idols are also making their marks in the political arena. Season 5 winner Taylor Hicks was the opening act for Clint Eastwood at the Republican National Convention, and Season 11 semi-finalist Shannon Magrane entertained the RNC at the official welcoming ceremony.

In other Sanchez news, the teenager was recently in New York City working on new songs for her debut album, schduled for a fall release. Sanchez, who in May told The Hollywood Reporter that her next single will be "100 percent me," unveiled a new track, "Fairytale" at an iHeartRadio performance last week.

STORY: 'American Idol' Tour: Backstage and in the Crowd as Phillip Phillips, Jessica Sanchez and Crew Roll Into Philadelphia

Watch Sanchez's DNC performance and her new song, "Fairytale" (with some Prince thrown in for good measure) below:

Twitter: @Idol_Worship