The “Hottest Breakthrough MC of 2010″ will be chosen by you, the audience, from the 20 candidates MTV News has selected.

Cast your vote below, but bear in mind that this poll is strictly limited to up-and-coming talent: artists cannot have released a major-label album by June 21, 2010, or been voted into a previous “Hottest MCs in the Game” top 10, so MCs like Lil Wayne, Jay-Z, Andre 3000, Eminem, Kanye West and even Drake — our #3 Hottest MC last year — and chart-topper B.o.B are not eligible. We’ll have the 2010 “Hottest MCs” rollout later in the year.

You should cast your vote based in the following factors: The MC’s musical skill (rhyme ability, flow and songwriting) as well as their buzz on the street and the impact they’ve had on the game so far. All of those factors should be taken into consideration when casting your vote!

The poll is open until midnight on July 16, and the five MCs with the most votes will be unveiled starting on July 19. All five will be featured on the award show the “Sucker Free Summit” on July 25, and then the winner, chosen by you, will be announced.

As you’ll see from our list below, plenty of up-and-coming MCs have made their names known in recent months. So take a look, consider carefully, and cast your vote!

Vote at at