The new U.K. sales charts published yesterday (Sunday) saw British electronic dance act Nero scoring their first U.K. No. 1 single with "Promises" (MTA/Mercury/Universal) and Amy Winehouse in a third posthumous week atop the album survey with "Back To Black" (Universal Island).

Nero have origins dating back to 2004 but released their first single, "Innocence," only last year. Their first U.K. chart success came when the follow-up, "Me & You," reached No. 15 in January; "Guilt" followed it as a No. 8 hit in May. "Promises" sold a modest 46,000 to top the new chart, and Nero's debut album "Welcome Reality" is released in the U.K. today (15).

Stateside: LMFAO Keeps Katy Perry at Bay Atop Hot 100

The former No. 1, JLS' "She Makes Me Wanna" (Epic/Sony Music Entertainment), held at No. 2 as last week's debutante at the top Cher Lloyd fell to No. 3 with "Swagger Jagger" (Syco Music/Sony Music Entertainment). "Little Bad Girl" (Positiva/Virgin/EMI) by David Guetta featuring Taio Cruz and Ludacris climbed again 6-4 and Christina Perri's "Jar of Hearts" (Atlantic/Warner Music) 17-5. Guetta enjoyed another singles chart debut at No. 16 with "Titanium," featuring Australian vocalist Sia, as the French DJ's previous hit "Where Them Girls At," featuring Flo Rida and Nicki Minaj, dipped 19-21.

"Back To Black" retained the album chart crown with new sales of 43,000 (for both original and deluxe versions, combined) as Winehouse fell 3-4 with "Frank." Adele held at No. 2 with "21" and slipped 4-5 with "19" (XL Recordings) and the new title in the top five was Jay-Z and Kanye West's "Watch The Throne" (Def Jam/Universal), at No. 3.

Extensive promotion in the market, including breakfast television appearances last week, by R&B longserver Randy Crawford saw her new "Best Of" set on Rhino/Warner Music debut at No. 7. Of many previous chart compilations, a  "Very Best Of" reached No. 8 in 2003, but this is Crawford's highest ranking on the U.K. chart since "Windsong" also reached No. 7 in 1982.

Florida metal band Trivium scored a No. 16 debut with "In Waves" (Roadrunner). On the compilation chart, "Now! That's What I Call Music 79" (EMI/Virgin/UMTV) is No. 1 for a third week.