Blake Shelton, Christina Aguilera and Adam Levine are all original coaches from The Voice Season 1.

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Come Monday, their other original coach cast member CeeLo Green along with other coaches who have come and gone over the seasons, Usher and Gwen Stefani, will rejoin them.

E! Online broke the news Tuesday, noting that this is the first time such a reunion is happening. These three returning Voice coaches will advise the Top 8.

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CeeLo appeared on Seasons 1-3 as well as 5, while Usher appeared on Season 4 as well as 6 and Stefani was on Season 7.

Usher will mentor Team Adam's last remaining contestant Joshua Davis.

Stefani will work with Team Xtina, which consists of India Carney and Kimberly Nichole. The pop-rocker will also mentor Team Pharrell's Koryn Hawthorne and Sawyer Fredericks.

Lastly, CeeLo is advising Team Blake's Corey Kent White, Meghan Linsey and Hannah Kirby.

This "#VoiceReunion" is thrilling as seen by the tweets on The Voice's Twitter, including the one below.

Stefani is stoked to return as she tweeted she's "so excited!"

Team Xtina's rocker even shared a sneak peek from shooting with her coach and Stefani during a mentoring session.

A preview of the reunion can be watched below. To add to The Voice reunion, Season 7's runner-up Matt McAndrew will return Monday to perform his new single "Counting On Love," which he's looking forward to.

Tune in on Mondays and Tuesdays starting at 8 p.m. ET for Season 8 of The Voice on NBC.

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