Mick Jagger Rocks Out for Obama at White House

POWER LUNCH: Mick Jagger
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In New York, Meatpacking District hotspot lounge Double Seven just reopened and has already been visited by Mick Jagger (pictured) and L'Wren Scott, Desiree Gruber, CBS Entertainment's Jack Sussman, Brett Ratner, A.R. Rahman, Morgan Spurlock, Gayle King and Steve Martin

Even rock legends get starstruck.

After President Obama swung by to watch Mick Jagger practice for a White House blues concert, the Rolling Stones frontman could not resist relaying the encounter to his followers on Twitter.

"Met President Obama who listened to a few tunes during rehearsal he seemed really relaxed and happy!" declared Jagger, tweeting a link to a photo of himself and fashion designer-girlfriend L'Wren Scott. During his visit to 1600 Pennsylvania Avenue, the singer toured the West Wing with Scott, his equally Twitter-happy companion, who posted an image of a White House doorway.

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"Happy Presidents day it was amazing to meet the President ... we loved every moment," she wrote.

Jagger was scheduled to perform a concert tribute to blues music at the White House Tuesday night, alongside Buddy Guy, B.B. King, Jeff Beck, Derek Trucks and Keb Mo. The event -- hosted by the Obamas as part of Black History Month -- will air Feb. 27 on PBS at 9 p.m. EST.