During last night's episode of 'The Voice,' fans were offered a special treat -- a brief new 'Transformers 4' trailer, in advance of the full-length one dropping in just two days time, premiered with some exciting new footage and some Dragons of its own.

We're referring to Imagine Dragons, though we would've loved to see Optimus Prime as the new "Mother of Dragons" while riding into battle on the back of the T-Rex Dinobot, Grimlock. But, hey, there's always the sequels!

Imagine Dragons, the Grammy-winning band who contributed music to such soundtracks as 'The Host,' 'Iron Man 3' and 'The Hunger Games: Catching Fire,' is now collaborating with 'Transformers 4' (officially titled 'Transformers: Age of Extinction') in contributing both an original song, "Battle Cry," and original music to the score. Said Paramount in a statement:

Following an early footage screening of the film, Imagine Dragons wrote the original song "BATTLE CRY," which Bay used in critical points in the film. Additionally, the band contributed original music during the scoring process by recording cues with Jablonsky, the film's composer, and Hans Zimmer, who assisted in the process. The collaboration resulted in added depth to the sound of the film.

In addition to the announcement of Imagine Dragons, the latest 'Transformers 4' trailer featured brand-new footage we'll likely see in the beefier trailer coming later this week, including Grimlock breathing fire (if we can't have Autobot dragons, we at least have that) as Optimus Prime's mount.

UPDATE: A new poster (yes, another one) debuted for 'Transformers 4' featuring a close-up of Grimlock. Check it out below.

The film is directed by Michael Bay and stars the likes of Mark Wahlberg, Nicola Peltz, Jack Reynor, T.J. Miller, Kelsey Grammer and Stanley Tucci, as well as a voice cast of John Goodman, Ken Watanabe, Peter Cullen and more. 'Transformers 4' will hit theaters on June 27.