"It's over/Yeah, we're through/So I'm-a unfriend you," sings Greyson Chance on Hold on 'Til the Night, his reedy voice rising in a fit of pique. Though Chance may be serious about committing the ultimate social-media diss, the 13-year-old is anything but threatening on this potential blockbuster of a debut. The Oklahoma native scored big with a solo piano cover of Lady Gaga's "Paparazzi" (41 million YouTube views and counting), and here he's always in a lather, singing power ballads about holding on to dreams and seizing the day. His handlers clearly hope he's the next Bieber; sadly, there's not an ounce of fun in him. Unfriend.

Listen to "Unfriend You":

Related
• Photos: Greyson Chance and More at the 'Harry Potter and the Deathly Hallows, Part 2' Premiere
• Photos: The Week's Hottest Live Shots

“The A Team”

This debut track from the then-20-year-old British singer-songwriter has a dark story behind it. Sheeran says he culls songwriting inspiration from "viewing other people's situations," which, for the heroine in "The A Team," involves drug addiction and prostitution that began as a teen. Sheeran paints the woman's trials with haunting imagery such as "But lately her face seems/Slowly sinking, wasting/Crumbling like pastries." "I did a gig at a homeless shelter, [and the song] is about one of the women there. It's her story," he said.