Apple has promoted the iPod and iTunes with several advertising campaigns, particularly with their silhouette commercials used both in print and on TV. These commercials feature people as dark silhouettes, dancing to music against bright-colored backgrounds. The silhouettes hold their iPods which are shown in distinctive white. The TV advertisements have used a variety of songs from both mainstream and relatively unknown artists, whilst some commercials have featured silhouettes of specific artists including Bob Dylan, U2, Eminem, Jet, The Ting Tings, Yael Naïm, CSS, Caesars, and Wynton Marsalis.