R&B singer Mario has been busy in the booth lately and recently previewed a rendition of Adele’s 'Rolling in the Deep.'

The 25-year-old is currently recording his upcoming studio album Restoration, currently slated for a February 2012 release and previewed the front cover to his new single 'The Wall' featuring rapper Fabolous via Twitter.

The featured video sees the singer taking his fans behind the scenes of the recording process and can be heard singing the hit tune from the UK soul star at 3.38.

Before the release of his fifth studio album, the singer will release a mixtape entitled ‘Truth Be Told’ after previously asking fans to select a name for the release.

Have a look at the video below...

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