Shakira and Usher will  reprise their roles as Season 4 judge/mentors, reuniting with show voice2regulars Adam Levine and Blake Shelton for the NBC singing competition’s sixth season. They pair returns in a special two-night premiere: 8-10 PM Monday, February 24, and 8-9 PM Tuesday, February 25.

Related: TV Ratings: ‘The Voice’ Hits Performance Finale Low

The Voice has averaged a 4.9 rating in the demo and 14.7 million viewers overall with its Monday edition, and a 4.5 and 14 viewers overall on Tuesdays, making it the No. 1-rated Monday and Tuesday series on the broadcast networks so far this season in TheVoice__121109194015-200x112__130425000858__130502160756__130516211150the demo. Last spring, Shakira and Usher were cast to fill in for Christina Aguilera and Cee Lo Green, respectively, on The Voice — the latter two original judge/mentors returning for the fall season. It’s an arrangement the show’s producers appear to have institutionalized. And in so doing, The Voice has become a bastion of judge stability while Fox’s The X Factor is on its third judging panel in three seasons, and we’ve lost count of the various iterations and regroupings on Fox’s American Idol, which in January will feature the return of JLo and Keith Urban and the addition of Harry Connick Jr.

Related: Simon Cowell: “The X Factor’ Will Be Back Next Season”

One Three Media (a Hearst | Mark Burnett company), Talpa Media USA Inc. and Warner Horizon Television produce The Voice, which was created by John de Mol, who executive produces along with Burnett, Audrey Morrissey, Stijn Bakkers and Lee Metzger.