'Honey Boo Boo': Family Twerks, Plans Mama's Birthday and Decides to Invite Mario Lopez (Exclusive Video)

Mama is celebrating her birthday -- but it's not a joyous occasion.

"Mama's been a Debbie Downer ever since Anna told us she was flying out of the coop," her daughter "Pumpkin" says of her newly engaged sister in this exclusive clip from Here Comes Honey Boo Boo. "So we're gonna brainstorm some ideas in order to get that big Bertha happy."

Among those ideas: planning a "house-cation" for her with a tropical theme -- and inviting Mario Lopez.

Saya Mama of the former Saved by the Bell star: "What girl didn't have a crush on A.C. Slater? That love never dies."

TLC said Wednesday that the reality show will return with new back-to-back episodes at 9 p.m. Thursday, June 19.

In addition to Anna's big move, the new episodes find Sugar Bear's health a focus as he's forced to decrease his stress level, and the family attempts to give Mama a makeover. The hourlong finale will focus on Anna and Michael's wedding.

Here Comes Honey Boo Boo is produced by Authentic Entertainment for TLC.