Harry Connick Jr.

Grammy & Emmy Award-Winning Singer

Colleen Ballinger (Miranda Sings)

Comedian, Actress, and Singer; Best Known as her Internet Character "Miranda Sings"

Cassadee Pope

Singer-Songwriter; Winner of "The Voice" Season 3 & Lead Singer of "Hey Monday"

Lennon and Maisy Stella

Actresses, Singers, and Authors

James Franco

Actor and Filmmaker; Known for "Oz the Great and Powerful" and "Spider-Man"

Dolly Parton

Country Singer-Songwriter, Actress, Author & Philanthropist

Good Lookin' Cookin': A Year of Meals - A Lifetime of Family, Friends, and Food

Sigourney Weaver

Golden Globe-Winning Actress & Environmentalist

Julia Louis-Dreyfus

Emmy Award-Winning Actress Known For "Seinfeld" & "Veep"

Share Ross

CEO at Video Rockstar University; Speaks on How to Go From Starving to Thriving

Kat Dennings

Actress, Best-Known for "2 Broke Girls"

Liev Schreiber

American Actor, Producer, Director, and Screenwriter

Bethany Joy Lenz

Actress, Singer-Songwriter & Filmmaker; Known For "One Tree Hill"

Rozzi Crane

Singer-Songwriter; Signed to Adam Levine's Label 222 Records

Rumer Willis

Actress & Daughter of Bruce Willis and Demi Moore; Season 20 Champion of "Dancing With the Stars"

Noa Tishby

Israeli Actress, Writer, Producer & Activist

Uncomfortable Conversations with a Jew

Scarlett Johansson

Award-Winning Actress & Singer Known for Portraying the Black Widow in the Marvel Cinematic Universe

Maggie Gyllenhaal

Actress, Model & Activist

Frank Oz

Film Director, Actor & Puppeteer, Best Known for Being the Creator and Performer of Yoda, Miss Piggy & Cookie Monster

Mark Ronson

Award-Winning Music producer and DJ

Jerry Seinfeld

Comedian, Actor, Writer & Producer Best Known for the Sitcom "Seinfeld"

Moran Atias

Israeli Actress Known for Her Roles in "Crash" & "Third Person"

Ben Foster

Actor, Known for "Liberty Heights" and "K-Men: the Last Stand"

F. Gary Gray

Director, Film Produce & Actor; Best Known for Directing "Straight Outta Compton" & "The Italian Job"

Tilda Swinton

Actress Known for "The Chronicles of Narnia," "We Need to Talk About Kevin" & "The Grand Budapest Hotel"

Tilda Swinton, Idris Elba talk 'Three Thousand Years of Longing'

Skylar Astin

American Actor & Singer Best Known for his Role in "Pitch Perfect"

Selena Gomez

Actress & Singer; Best Known for "Wizards of Waverly Place"

Carla Gugino

American Actress; Known for Lead Role in Spy Kids Film Trilogy and in Jupiter in Watchmen

Simon Helberg

Actor & Comedian; Best Known for Role of Howard Wolowitz on "The Big Bang Theory"

Debbie Gibson

Singer-Songwriter and Reality TV Star; "Only In My Dreams"

Laura Prepon

Actress Known for Her Roles on "That '70s Show" and "Orange is the New Black"