The Voice Season 29, billed as the “Battle of Champions,” is delivering plenty of nostalgia this spring, but with a fresh twist. Two beloved former coaches — CeeLo Green and Michael Bublé — are making their way back to the NBC singing competition. However, they won’t be reclaiming their iconic red spinning chairs as full-time coaches. Instead, the fan-favorite stars are returning in powerful advisory roles that could significantly influence which artists advance deep into the competition.

This season features a streamlined coaching panel consisting of original coach Adam Levine, multi-time winner John Legend, and the ever-popular Kelly Clarkson. The “Battle of Champions” format brings heightened stakes, with no traditional Saves during the Battles and intense pressure on every performance. In this high-stakes environment, the addition of experienced alumni as Mega Mentors during the Knockouts round provides crucial guidance and strategic insight for the remaining artists.

CeeLo Green, one of the show’s original four coaches alongside Adam Levine, Blake Shelton, and Christina Aguilera, is pulling double duty. The eccentric, soulful artist known for his eclectic style and hits like “Forget You” and “Crazy” will serve as Mega Mentor for both Team Adam and Team Legend. His return marks a full-circle moment for the series. CeeLo has a long history with The Voice, having mentored several successful contestants in the show’s early seasons. Fans remember his flamboyant coaching style, sharp feedback, and ability to push artists outside their comfort zones while nurturing their unique voices.

Green’s involvement doesn’t stop at mentoring. He is also set to play a key judging role in the new In-Season All-Star Competition, a special segment that brings back standout artists from previous seasons to compete in head-to-head sing-offs. The coach whose returning artists rack up the most victories earns a major advantage: an extra spot in the finale for one of their current team members. This twist adds another layer of drama and gives CeeLo significant influence over the season’s outcome.

Meanwhile, Michael Bublé — the smooth, charismatic Canadian crooner who served as a coach in recent seasons and even secured a championship win — will step in as Mega Mentor specifically for Team Kelly. Bublé, celebrated for his timeless jazz-infused pop style and warm on-camera presence, previously guided artists with a focus on technical precision, stagecraft, and emotional delivery. His return as a mentor for Clarkson’s team brings a perfect balance of experience and star power. Viewers can expect Bublé to offer polished advice on vocal technique, song interpretation, and connecting with audiences — skills that helped him become one of the most successful coaches in recent years.

The Mega Mentor format allows these returning stars to work closely with contestants during the critical Knockouts round, where artists perform one-on-one and coaches must make tough elimination decisions. Having CeeLo and Bublé in the room means contestants on these teams will receive guidance from voices that understand both the pressure of the competition and the realities of building a sustainable music career. Their insights could prove decisive as the field narrows and the live shows approach.

This strategic use of alumni coaches fits perfectly with Season 29’s “Battle of Champions” theme. By bringing back familiar faces in supporting roles rather than as full-time panelists, producers have injected fresh energy and nostalgia without disrupting the core three-coach dynamic. It also gives fans a chance to see beloved personalities interact with the current roster in new ways — CeeLo’s quirky, motivational style clashing or complementing Adam and John’s approaches, while Bublé’s cool sophistication pairs naturally with Kelly’s heartfelt, empathetic coaching.

The excitement around these returns extends beyond the mentors themselves. Other alumni are also involved, including former coach Jennifer Hudson serving as a Battles advisor and several past winners and finalists returning for the All-Star Competition. This season feels like a reunion of sorts, celebrating the show’s rich history while pushing forward with new talent and formats.

For longtime viewers, seeing CeeLo Green back on set — even if not permanently in the red chair — stirs up fond memories of the show’s early golden era. His larger-than-life personality and genuine passion for discovering raw talent made him a standout from day one. Similarly, Michael Bublé brought a different flavor during his coaching tenure, blending old-school crooner charm with modern accessibility. Their combined presence adds credibility and star wattage to Season 29 at a time when the competition is fiercer than ever.

As the Knockouts unfold, audiences can look forward to behind-the-scenes footage and on-stage moments where these Mega Mentors offer advice, rehearse with artists, and help shape performances that could make or break dreams. Will CeeLo’s bold, genre-bending perspective help an artist on Team Adam or Team Legend break through? Can Bublé’s refined approach elevate one of Kelly’s contestants to the next level? The answers will play out live on NBC in the coming weeks.

The Voice has always thrived on its mix of raw talent, emotional storytelling, and high-stakes drama. By bringing back CeeLo Green and Michael Bublé in these influential mentoring roles, Season 29 cleverly honors the show’s legacy while keeping the focus on the new generation of singers fighting for their big break. It’s a smart move that rewards loyal fans with familiar faces and gives current contestants access to proven expertise.

Whether you’re a die-hard fan of the original seasons or a newer viewer drawn to the current coaches’ chemistry, the return of these two stars adds an extra layer of anticipation. The red chairs may belong to Adam, John, and Kelly this season, but the wisdom and star power of CeeLo Green and Michael Bublé are very much back in the building — ready to help shape the next chapter of The Voice history.

As the competition intensifies, one thing is certain: with these legendary voices guiding from the sidelines, the path to the finale just got a lot more interesting — and a whole lot more entertaining.