Christina Aguilera

Grammy Award-Winning Singer-Songwriter, Record Producer & Actress

Shaggy

Singer, Songwriter & DJ

Gabby Barrett

Multi-Platinum Country Music Singer-Songwriter; American Idol Season 2018 Runner Up

Melanie Martinez

Singer-Songwriter, Director & Artist

Maddie Ziegler

Dancer, Author, Model, Actress, Star on "Dance Moms," Known for her Performance in Sia's "Chandelier" Music Video

Maddie Diaries

Jordin Sparks

Pop and R&B Vocalist; American Idol Winner

Kimora Lee Simmons

CEO of JustFab and Creator of Baby Phat; Former Fashion Model

Adam Lambert

Singer-Songwriter and Stage Actor; Contestant on "American Idol"

Sharon Osbourne

Reality TV Personality Known for "America's Got Talent"; Former Host of "The Talk"

Carrie Ann Inaba

"Dancing with the Stars" Judge, Founder of Carrie Ann Inaba Animal Project

D.J. "Shangela" Pierce

Actor, Drag Performer & Co-Host of HBO’s “We’re Here”

Nadiya Hussain

British TV Chef & Author; Winner of the Sixth Season of The Great British Bake Off

Celeste

Award-Winning Singer-Songwriter Known for "Not Your Muse"

Chrishell Stause

Star on the Netflix Series "Selling Sunset"

Amy Lee

Lead Vocalist for Rock Band Evanescence, Film Composer & Epilepsy Advocate

Erin Foster

Co-Founder of Favorite Daughter & Co-Host of "The World's First Podcast"; Co-Founder of Oversubscribed Ventures

Tracy Tutor

Star of "Million Dollar Listing Los Angeles"

Clea Shearer

Co-Founder of The Home Edit & Co-Host of "Master The Mess"

Jorja Smith

English Singer/Songwriter

Yolanda Hadid

TV Personality & Former Model; Best Known for "The Real Housewives of Beverly Hills"

Monica Brown

Singer-Songwriter & Actress

Sarah Cooper

Comedian & Author of "100 Tricks to Appear Smart in Meetings"

Foolish: Tales of Assimilation, Determination, and Humiliation

Johnny Manuel

Singer-Songwriter, "America's Got Talent" Contestant

Nikki Bella

Professional Wrestler, Actress, Reality TV Personality & Model

Darci Lynne

Singing Ventriloquist; Winner of "America's Got Talent" Season 12

David Ross

Former MLB Catcher, Chicago Cubs Manager, Runner-Up on Season 24 of DWTS

Karen O

South Korean-born singer and musician; lead vocalist for American rock band Yeah Yeah Yeahs

Melissa Villaseñor

Stand-Up Comedian, Actress & Impressionist; Cast Member on "Saturday Night Live"

Sza

Grammy Award-Winning R&B & Neo Soul Singer-Songwriter

Christina Tosi

Chef, Author, TV Personality & Founder of Momofuku Milk Bar

Dessert Can Save the World: Stories, Secrets, and Recipes for a Stubbornly Joyful Exist...