Lea Michele performs while pregnant for first time ever at Joe Biden's $25 million fundraiser: 'I just decided why not?'

Although Lea Michele is pregnant for the second time, the proud mother is still checking some firsts off her list.

The Golden Globe nominee, 37, celebrated a pregnancy first on Thursday as she took the stage at Radio City Music Hall in New York City for President Joe Biden's record-breaking $25 million fundraiser.

'So, I've never sung pregnant ever before,' she explained on her Instagram Story in a video for her 8.3 million followers.

'And I just decided why not for the first time come to Radio City, one of the most amazing, iconic venues in the whole world, to sing "Don't Rain on My Parade"?' added Michele.

Biden, 81, was supported at 'An Evening with the Presidents' by his predecessors Barack Obama and Bill Clinton. 

Lea Michele celebrated a pregnancy first on Thursday as she took the stage at Radio City Music Hall in New York City for President Joe Biden 's record-breaking $25 million fundraiser

'So, I've never sung pregnant ever before,' she explained on her Instagram Story in a video for her 8.3 million followers

Hosted by Mindy Kaling, the democratic fundraiser also featured performances from Lizzo, Queen Latifah, Cynthia Erivo and Ben Platt.

Stephen Colbert also led a conversation with the former presidents.

The event broke fundraising records with an estimated $25 million for the Biden Victory Fund, supporting the president's campaign for reelection in November.

'Such an honor getting to perform at @radiocitymusichall for three presidents tonight,' wrote Michele with a photo of the marquee.

The Glee alum dazzled in a sleeveless white ankle-length dress that sparkled under the Radio City spotlight.

She completed the ensemble with matching heels and a pair of dangling earrings, put on display with her hair parted and styled back.

Michele gave an energetic performance of "Don't Rain on My Parade" from her recent Broadway revival run in Funny Face.

The Forever artist announced her second pregnancy with husband Zandy Reich the day before with some maternity photos on Instagram.

Biden was supported at 'An Evening with the Presidents' by his predecessors Barack Obama and Bill Clinton

The Glee alum dazzled in a sleeveless white ankle-length dress that sparkled under the Radio City spotlight

Michele announced her second pregnancy with husband Zandy Reich the day before with some maternity photos on Instagram

'Mommy, Daddy and Ever are overjoyed,' wrote Michele in the caption.

With the exception of a pair of white underwear, she went nude under a floor-length shawl, cradling her baby bump.

Michele tied the knot with the fashion executive in March 2019.

The couple welcomed their first child, son Ever Leo, 2, on August 20, 2020.