Madonna Working on “So Many Great Songs” in the Studio.

Looks like recording sessions for Madonna's next album are in full swing.  After revealing last week that she's working with Swedish deejay and producer Avicii you know, the "Wake Me Up" guy on new music, she's now posted on Instagram several updates about the project.

Sharing a photo of herself with Avicii, whose birth name is Tim Bergling, Madonna writes, "The End of a long week with Viking Leader...AKA Avicii! So many great songs! #icantwait#revolution."

Another photo shows Madonna sitting on a wood floor holding a guitar, surrounded by Bergling and three other men. It's captioned, "My Viking Harem! Great Music Great Vibes!" She also added the hashtag "#rebelheart."

Given Avicii's knack for combining organic and electronic sounds as you can hear in his hits "Wake Me Up" and "Hey Brother" it's no surprise that Madonna has chosen to work with him.  She explored similar territory in her hit "Don't Tell Me" a few years back