Singer Mariah Carey says her three-year-old twins, daughter Monroe and son Moroccan blew her mind while they were recording a song for her new album.

The twins contributed to a song titled "Supernatural" in the album "Me. I Am Mariah... The Elusive Chanteuse".

Carey said that the twins handled the sessions brilliantly and made her proud, reports contactmusic.com.

"It's astonishing to hear my daughter sing and to sing with her, she's a natural. I feel like I'm bragging, but they're both featured on a song called 'Supernatural' on the album, I wrote it about them and for them," said the 44-year-old.

"It blows my mind, the attention span they have when we're recording," she added.

The singer said that her "strict" parenting with regards to technology could be a reason they were more tuned into the session.

"I guess it's because I don't let them sit on the iPad all day, I'm strict about that. Monroe, If I put her on stage, doesn't want to leave, and I've noticed she wants to sing a song in her own way. She's taking creative control," said Carey.