Another week flew by, and now, it's Friday. So, that means another edition of our "IN ROTATION" picks. Today, we have a few new free projects -- including Boston rapper J The S' anticipated The Last Days album, San Diego rapper Cals' High Life mixtape, Marcus Manchild's Space Jam mixtape, and Planet VI's American Dream mixtape. We also have single tracks from Saigon, Gucci Mane, and K'Naan, as well as Teairra Mari's "U Did Dat (Remix)" with 2 Chainz, some new Airplane Boys, and much more.

Saigon - "Hungry" - Listen Here
A new leak off Saigon's upcoming mixtape, Warning Shots 3: One Foot In The Grave.

Marcus Manchild - Space Jams (Mixtape) - Listen Here
Newcomer Marcus Manchild drops a brand new mixtape, consisting of 15 new tracks, and boasting features from Slim Thug and Yo Gotti.

Cals - High Life (Mixtape) - Listen Here
San Diego rapper Cals drops this new mixtape in preparation for his upcoming solo album, Paper Trail Gang. It boasts 14 songs that did not make the record and is releasing them as a free mixtape for the fans.

Airplane Boys - "New Blood" - Listen Here
Following their successful debut project, Where've You Been, The Airplane Boys are back with their newest single "New Blood", off their upcoming mixtape, Alignment, due in February.

1982 (Statik Selektah & Termanology) ft. Drake - "Rap & Bitches" - Listen Here
A leak off 1982's upcoming album, titled 2012, coming soon.

Major Lazer - "Original Don (Flosstradamus Remix)" - Listen Here
The Major Lazer hit, "Original Don," gets another great rework from Flosstradamus in their trap remix.

B.o.B - "Rack City (Freestyle)" - Listen Here
B.o.B is the latest to hop on the Tyga smash hit.

K'Naan ft. Nas - "Nothing To Lose" - Listen Here
A collaboration with Nas off K'Naan's upcoming five-track digital EP, titled More Beautiful Than Silence, due out January 24.

Teairra Mari ft. 2 Chainz - "U Did Dat" - Listen Here
2 Chainz gets on another feature. This time, for the remix of Teairra Mari's new Rico Love-produced single.

Skillz - "With You" - Listen Here
Following his annual year-end "2011 Rap-Up", Skillz hits fans with a brand new track.

J The S - The Last Days (Free Album) - Listen Here
Boston rhymesayer J The S has teamed up with DJBooth.net for the release of his long-awaited debut studio album, The Last Days. It featuers Styles P, Pill, and Emilio Rojas with production coming from The Kickdrums, M-Phazes, J. Cardim, Keelay and more.

Master P (aka Monstahh) ft. T.E.C. - "Monster Energy Drink" - Listen Here
Master P returns as his Monstahh alter-ago with this brand new track in support of Monster Energy Drink.

Los Rakas ft. E-40 - "Pimpin' Smokin' Dro" - Listen Here
The Panamanian-American duo hook up with E-40 for this brand new track off their upcoming Raka Love EP.

Russell W ft. Nipsey Hussle - "Welcome To The Lovely Life" - Listen Here
Platinum producer and rising rapper Russell W. Howard is back in studio. Recently, he linked up with Nipsey Hussle for his new single, "Welcome to the Lovely Life," showcasing a life of class and glamour.

Planet VI - American Dream (Mixtape) - Listen Here
Group Planet VI, previously known as Rock City, drop this brand new mixtape, boasting features from Dom Kennedy, 2Chainz, Kardinal Offishall, Cassie and more.

Gucci Mane - "Trap Back" - Listen Here
Some new Gucci. This is the title track off his upcoming mixtape, due February 5th.