This weekend on an all-new CMT Hot 20 Countdown, celebrate the 30-year anniversary of the Dollywood with the incomparable Dolly Parton.

We go one-on-one with the country icon about her East Tennessee theme park, a superstar duet that has her nervous, new music that’s on the horizon -- and her wigs. Speaking of her’s hairstyles, there’s one look she’d like to forget.

Also on this weekend’s Hot 20:

Jason Aldean gets married south of the border. We have the wedding day photos and the identity of the TV reality star who officiated the nuptials.

The Country Music Hall of Fame adds three new members. We’re at the life-changing ceremony for the class of 2015.

Time has flown by quickly for Darius Rucker. The “Homegrown Honey” singer looks back on the past few years as he prepares to release his fourth country album, Southern Style. He’ll also share what’s on his bucket list.

Maddie & Tae show off their extreme music video stunt. Go behind the scenes of “Fly,” where one wrong move could have been hazardous to the country duo.

RaeLynn is here for the entire show. The hot newcomer reveals some secrets about her friends Blake Shelton and Miranda Lambert, makes a promise to her mom that she’ll try to keep and will also help unveil the final eight videos moving on in Hot 20’s bracket tournament.

We’ll also be counting down the 20 hottest videos in the land.

Tune in to an all-new CMT Hot 20 Countdown this Saturday and Sunday (March 28-29) at 8:55 a.m. ET/PT.