New Delhi, Jan 8 : While Eminem and 50 Cent have yet not finalised a definite release date for their upcoming albums, new songs from both the rappers have hit radio and web.

Eminem''s "Crack a Bottle," featuring 50 Cent as well and his mentor Dr. Dre, was leaked online on January 6, reports The China Daily.

In fact, an earlier version of the same song minus the guest appearances had already leaked in November.

"It wasn''t close to finished, and it even has me doing guide vocals for Dre as a suggestion of how he could lay his verses down," Eminem told Billboard at the time.

The `Please stand up' hitmaker's first album in more than four years, "Relapse," is expected to hit the shelves this spring via Interscope Records.

On the other hand, a new 50 Cent song, `I Get It In', was released December 5 on New York radio station Hot 97.

The song belongs to the album, `Before I Self Destruct', which was originally due December 9 but was delayed as the rapper still had recording to finish.

However, an Interscope spokesperson failed to confirm a rumoured February 3 release date for the album. (ANI)