FIRST PIC: Meet Mariah Carey's Twin Babies, 6 Months!


Double vision of love!

Nearly six months after their birth, Moroccan and Monroe -- Mariah Carey and Nick Cannon's twin son and daughter -- are ready for their primetime debut.

As previously reported, Carey and hubby Cannon introduced their bundles of joy to Barbara Walters during an intimate visit to their lavish NYC apartment for a 20/20 interview airing this Friday.

In a just-released new shot from ABC, Walters bonds with the sweet little boy and girl, born April 30, held by their beaming parents.

The kids already have nicknames, naturally: "Roc and Roe," according to ABC. In a short clip from the upcoming special, Walters asked Carey, 41, whether she trusts husband of three years Cannon, 31.

"Sometimes!" Carey teased.

"My son is laid back like me," Cannon, told Us Weekly back in June. "My daughter's a diva like her mom!"

The special airs on ABC this Friday at 10 p.m.