LONI ANDERSON is about to walk down the aisle for the fourth time! The sixtysomething, former "WKRP in Cincinnati" sex symbol has reconnected with BOB FLICK, her former flame from 45 years ago, and ET's JANN CARL is with the blushing bride!

"I'm the bride! I mean, I can't even believe it!" says Loni. "I should've married him 40 years ago -- he was the one I should've married in the first place, so now I get my chance."

Jann tagged along with the happy couple to Williams-Sonoma, where they're registered, and Loni shared some wonderful details about the wedding -- like how her dress is by MONIQUE L'HUILLIER -- and how they reconnected!

Their love story began in 1963, when Bob was a 24-year-old bass player with the folk band BROTHERS FOUR and Loni was 17 years old and a brunette model. The two fell in love and dated for six months, but then drifted apart.

"I was broken hearted. Just broken hearted," she says. "He was the one that got away."

Many years and three failed marriages later -- including a high-profile divorce from BURT REYNOLDS -- fate brought Loni back together with Bob when she was doing charity in Bob's hometown and looked him up.

"I wasn't expecting the butterflies," she explains. "He came to the hotel room door and I thought, 'Oh my god! Danger! Warning!' I felt the same way about this guy that I did 40 years ago."

Watch ET for more with Loni!