Every year, the BBC News website surveys the UK's most influential and knowledgeable music pundits to uncover the hottest new music acts.
The Sound of 2006 top 10 was published a year ago - but how have the chosen artists fared?
The Sound of 2007 countdown begins on Monday. One artist from this year's top five will be revealed every day until Friday, when the winner and full top 10 will be announced.
1. Corinne Bailey Rae
Seductive soulstress Corinne Bailey Rae released her self-titled debut album in February, which went straight to number one in the UK and spawned the hit single Put Your Records On.
Corinne Bailey Rae has been nominated for three Grammys
The singer picked up two Mobo Awards and was also named best new act at both the Q and Mojo magazine ceremonies.
In the US, her album reached the top 20 and she has been nominated for three prestigious Grammy Awards.
2. Clap Your Hands Say Yeah
The New York indie band's noisy debut album came out in January, when it reached number 26 in the UK charts.
The group have maintained a loyal live following, with David Bowie reportedly turning up to several concerts in 2006.
A new album, Some Loud Thunder, comes out in January.
3. The Feeling
Soft-rock saviours The Feeling were a permanent radio fixture in 2006, and proved to be a guilty pleasure for many critics - making several end-of-year lists with their album Twelve Stops and Home.
The Feeling's hits have included Sewn and Never Be Lonely
The public embraced them, too, sending three singles into the top 10 and buying more than 600,000 copies of the album.
4. Plan B
Hailed as the future of British hip-hop, Plan B writes raps to an acoustic guitar accompaniment.
He appeared in all the right places - the NME Awards and Jools Holland's influential BBC Two show - and was a critics' favourite. But he struggled to win over the public and his album reached number 30.
Endorsed by Paul Weller and Jo Whiley, the Guillemots were critical darlings throughout 2006.
The Guillemots were nominated for the Mercury Music Prize
Their album, Through the Windowpane, was among the favourites for the Mercury Music Prize - but lost out to the Arctic Monkeys.
The Birmingham band rounded off the year by performing with the BBC Concert Orchestra at the Electric Proms.
The witty London rapper made big waves in 2006, gaining a Mercury Music Prize nomination for his self-released debut album This Is My Demo.
He was also crowned best UK rapper at the Black Entertainment Television (BET) Hip-Hop Awards in the US.
But he struggled to make the mainstream breakthrough and This Is My Demo failed to make the UK top 40.
7. Chris Brown
Seventeen-year-old US R&B prodigy Chris Brown had a successful year, reaching number two in the UK in February with his single Run It.
Chris Brown was named best artist at the Billboard Awards
Across the Atlantic, he won three Billboard Awards, including artist of the year, and two trophies at the BET Awards.
8. Marcos Hernandez
In a bad year for pop, which saw Smash Hits magazine close and Top of the Pops cancelled, it was always going to be hard for this former boy-band singer to make an impact.
Singles Call Me and Bittersweet failed to chart both in the UK and US.
A solid mid-table performer, Kubb gained a big enough fanbase to stage a sell-out UK tour at the start of 2006.
They also scored two UK top 40 singles, but were derided in The Independent as "flaccid sub-Coldplay crooners".
10. The Automatic
The year's biggest indie sing-along chorus gave The Automatic a massive hit in the summer, as Monster took up permanent residency in the Top 10.
The band became live favourites - but received an unofficial ban from GMTV after trashing their instruments live on air.
The ones that got away
Gnarls Barkley had the song of the year with Crazy and made history by reaching number one in the UK on download sales alone.
Gnarls Barkley had a global hit in 2006 with Crazy
Lily Allen and Sandi Thom seemingly came out of nowhere after building up extensive fanbases online, while James Morrison and The Kooks also made big breakthroughs.
Kaiser Chiefs, KT Tunstall and The Magic Numbers, all on the Sound of 2005 list, continued to build on their success this year. But little was heard from winners The Bravery.
Keane won Sound of 2004 and released one of this year's most popular albums, Under the Iron Sea. Fellow nominees Scissor Sisters and Razorlight both had number one albums in 2006.
The inaugural survey, Sound of 2003, was topped by US rapper 50 Cent before he hit the big time. Dizzee Rascal and Sean Paul were among the others on that list.