McCarthy raised her hidden left hand from behind the desk, revealing an engagement ring.
"It's a yellow sapphire," she said. "The View" co-host told how Wahlberg, star of CBS' "Blue Bloods" and a member of New Kids on the Block, proposed to her last weekend. She said her son, Evan, helped with the proposal.
Wahlberg, 44, then came on the set of the ABC show and hugged and kissed his fiancee.
"I feel like the luckiest girl in the world. He's so wonderful," McCarthy, 41, said.This will be the second marriage for both.