'The Voice' Season 4 Promo, Starring New Coaches Usher & Shakira (WATCH VIDEO)

During the third season finale of "The Voice," NBC featured a new promo that featured next season's two new coaches with two returning mentors.

In the promotional video that aired on Dec. 18, Usher and Shakira joins Adam Levine and Blake Shelton for a car ride to the studio with host Carson Daly. In the comedic skit, the gang does not seem to agree on what music to listen to in the car.

The group finally comes to a surprise agreement when a Bonnie Tyler tune comes on the radio.

The finale was the final appearance for Aguilera and Green until they return for the fifth season.

Enstarz previously reported that the multi-Grammy winning R&B star Usher and Colombian singer would join the hit singing reality competition show.

The changes are temporary as Aguilera and Green begin work on new projects. Aguilera released her latest studio effort, "Lotus" in November and will go on tour. Green is taking his career in the small screen to the next level by developing a scripted comedy series for NBC based on his life.

Aguilera described the temporary exit as "bittersweet" in an interview. "It's bittersweet," Aguilera reportedly told E! Online. "I so enjoy being a coach to my team on 'The Voice' [and] and at this point in season three, all of us coaches have truly bonded."

Usher, best known for his 2004 album "Confessions," is one of the world's best-selling artists with global sales of 65 million records. He has won seven Grammy awards and made guest appearances on "The Voice" as a guest mentor.

Shakira burst onto the international pop scene with her 2006 single "Hips Don't Lie."

The day after NBC entertainment chairman Robert Greenblatt announced Usher and Shakira as their new recruits, the Colombian songstress announced that she was pregnant. According to reports from Colombian media, she is due in January, but the singer did not give further details.

"As some of you may know, Gerard and I are very happy awaiting the arrival of our first baby! At this time we have decided to give priority to this unique moment in our lives and postpone all the promotional activities planned over the next few days," Shakira wrote on Facebook.

The fourth season of the "The Voice" will debut on March 25.

Check out the video below and be sure to tune into the premiere of season four.