By Chuck Arnold and Ralph Novak
Updated April 30, 2007 12:00 PM
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LINKIN PARK shows its soft side on the movingly repentant “What I’ve Done,” from the band’s third studio album, Minutes to Midnight, due May 15. At buymusic.com.

MYA returns with the street-but-sweet hip-hop soul jam “Lock U Down” featuring Lil Wayne, from her upcoming CD Liberation. At musicstore.real.com.

MANDY MOORE celebrates her personal growth on the life-affirming “Extraordinary,” from the singer-actress’s fifth studio disc, Wild Hope, out June 19. At iTunes.com.

SNOW PATROL follows up “Chasing Cars” with another affecting ballad, “Signal Fire,” from the Spider-Man 3 soundtrack, which hits stores May 1. At napster.com.