This 23-year-old Londoner is being hailed as "the U.K.'s answer to Lady Gaga," which might say more about the U.K.'s desire to answer to Lady Gaga than it does about Jessica Ellen Cornish. She's got a brash, broad voice and a be-yourself message. But Jessie is less show-stealing diva than impersonal pop technician (she co-wrote Miley Cyrus' "Party in the USA"). Her debut sounds like a collection of demos for other singers - Natasha Bedingfield on the down-to-earth "Price Tag," Katy Perry on the Dr. Luke-assisted "Abracadabra," Rihanna on the gender-flipping "Do It Like a Dude." It's well-meaning, well-crafted and confused. Sometimes versatility can be a vice.

Listen to "Price Tag (Featuring B.o.B.)":

Jessie J Makes Her Big American Debut on 'SNL'

“Ambling Alp”

The "Ambling Alp" was the nickname of the six-and-a-half-foot-tall Primo Carnera. Though the song is named after the Italian-born 1930s heavyweight champion, Yeasayer are actually paying tribute to boxing legend Joe Louis with this first-person psychedelic dance-rock tune. “I was always interested in writing a song that had boxing mythology in it,” Yeasayer’s Chris Keating said. “It’s pretty fascinating: There were so many amazing characters, and it was so closely entwined with 20th century history.” Yeaseyer also invokes German champ Max Schmeling and hints at the historical significance placed on the historic bouts between the Nazi-era boxer and the African-American Louis.