Christina Aguilera stunts on the mainstage. Plus, fan favorite queens from the past decade of Drag Race return as 14 new queens compete to become America’s Next Drag Superstar and win $100,000.

The queens must wow the judges (including Halsey and Padma Lakshmi) in a lip-synced dance number inspired by pharmaceutical TV ads, and Andy Cohen and Alyssa Edwards drop by.

The queens create and star in commercials for new drag-themed dating apps, and rock goddess Courtney Love and actor Nico Tortorella guest judge.

The queens cook up global warming-friendly looks for the last ball ever, and actresses Tisha Campbell-Martin and Logan Browning drop by to guest judge.

The queens' improv skills are put to the test for the new talk show "Bossy Rossy," hosted by Ross Matthews, and country music icon Shania Twain and actress Carrie Preston guest judge.

The queens have to produce and host their very own DragCon panels on makeup, hair and body, and Kumail Nanjiani and Emily V. Gordon guest judge.

The queens must impersonate celebrities for the legendary Snatch Game. Audra McDonald and Kate Upton guest judge, and Bianca Del Rio and Alex Trebek are special guests.

The queens pay tribute to one of the greatest stars of all time in Cher: The Unauthorized Rusical. Andrew Rannells and Billy Eichner guest judge.

The queens are assigned parts in the new hit series "Breastworld." Broad City stars Ilana Glazer and Abbi Jacobson guest judge, and Randy Rainbow and Stephen Colbert drop by.

The queens give some of today's hottest social media superstars drag makeovers. "13 Reasons Why" star Miles Heizer and hip-hop artist Lizzo guest judge.

The queens must present two characters on the runway: their best selves and their evil twins. "Girls" creator Lena Dunham and singer Ashanti guest judge, and Cheyenne Jackson ("American Horror Story") is a special guest.

The top four queens must write and perform a verse from RuPaul's hit single "American," and choreographer Todrick Hall, Carson Kressley and Ross Mathews guest judge.

The top four queens get ready to Lip Sync for the Crown in the Season 10 finale.