*NSYNC have congratulated Adele on breaking their album sales record.

And the 'Bye Bye Bye' hitmakers have now praised the 'Hello' singer for her achievement.

J.C. Chasez simply posted on Twitter: "Well done Adele."

His former bandmate Lance Bass proved more inventive with his message.

He wrote: "We officially say Bye Bye Bye as @Adele says Hello to the World Record of Most Albums Sold In a Single Week. Congratulations!! #IDemandARecount #NSYNC #Adele (sic)"

Chris Kirkpatrick retweeted a post about the record being broken, but didn't add any remarks of his own.

While Justin Timberlake has yet to comment, Joey Fatone is pleased it is Adele who has broken their record.

He told Billboard magazine: "In all honesty, Adele is the truth -- kinda excited a rare talent like hers is in the same breath as our group. I'm a huge fan. I even bought the damn album."

However, Joey admits he was amazed anyone had managed to smash their first-week sales.

He said: "Records are always meant to be broken, but with technology and current music business model, I thought this one would be tough to beat."