The EGOT winner debuted in a new campaign for Montblanc Legend fragrances on Friday (June 14).
Teigen proved that she did, indeed, give birth to her four-month-old daughter Esti Maxine.
The newborn's middle name also happens to be linked to the singer's family tree.
Four-year-old Miles was all the way at number 91 when Teigen began recording.
Teigen shared the series of snaps to celebrate her husband's 44th birthday.
The performance got a standing ovation from Legend himself.
Before 'Love in Las Vegas' ends, the artist and his longtime creative director open up about their creative process.
