Now That's What I Call Music! 45

'Now That's What I Call Music! 45' may refer to three different "Now That's What I Call Music!" series albums, including
 * Now That's What I Call Music! 45 (UK series)
 * Now That's What I Call Music! 45 (South African series)
 * Now That's What I Call Music! 45 (U.S. series)