It was impossible to miss Katy Perry over the weekend when she performed in an American flag-inspired outfit for the Kids’ Inaugural Concert in Washington D.C. The superstar headlined a show that also included Usher and Far East Movement. Introduced by first lady Michelle Obama, Perry blazed through her hits “Teenage Dream,” “Part of Me,” “Wide Awake” and “Firework.” The latter song was accompanied by a slideshow of President Barak Obama.
California Gurl Katy Perry performed her new album title track and latest single, "Teenage Dream,” last night on Late Show with David Letterman. It’s easy to lose one’s luster when standing next to this sensational pop-rock star, but Perry’s guitarists held their own thanks to their gorgeous Gretsch guitars. Letterman also interviewed Perry, discussing her engagement