Question: Glenn Slater received his third Tony nomination for his performance in a movie with music by who?

Context paragraphs:
School of Rock (musical): School of Rock is a rock musical with music by Andrew Lloyd Webber, lyrics by Glenn Slater and a book by Julian Fellowes.  Based on the 2003 film of the same name, with a screenplay by Mike White, the musical follows Dewey Finn, an out-of-work rock singer and guitarist who pretends to be a substitute teacher at a prestigious prep school.  After identifying the musical talent in his students, Dewey forms a band of fifth-graders, in an attempt to win the upcoming Battle of the Bands contest.

Robert Gray (Mississippi politician): Robert Gray (born April 14, 1969) is an American politician and truck driver from the state of Mississippi who was the Democratic nominee for Governor of Mississippi in the 2015 election.  A Jackson native, Gray is an unmarried long-distance truck driver and former firefighter.  He defeated lawyer Vicki Slater and Dr. Valerie Short in the Democratic gubernatorial primary on August 4, 2015.  Gray received 50.9% of the vote while Slater received 30.3% and Short 18.8%.  Gray did not vote in the primaries as he was out of town for work and later expressed surprise at his win.  He operates a truck company known as Fancy Horse Transportation, Inc.

Galavant: Galavant is an American musical comic fantasy television series, created and written by Dan Fogelman, with music and lyrics by Alan Menken and Glenn Slater.  Fogelman, Menken and Slater also serve as executive producers alongside Chris Koch, Kat Likkel and John Hoberg for ABC Studios.  The series premiered on January 4, 2015, as the mid-season replacement for "Once Upon a Time".

Love Never Dies (musical): Love Never Dies is a romantic musical composed by Andrew Lloyd Webber with lyrics by Glenn Slater and a book by Lloyd Webber, Ben Elton, Frederick Forsyth and Slater.  It is a sequel to the long-running musical "The Phantom of the Opera" loosely adapted from the 1999 novel "The Phantom of Manhattan", by Forsyth.

When Will My Life Begin?: "When Will My Life Begin?"  is a song from Disney's 2010 animated feature film, "Tangled".  It is sung by Rapunzel (Mandy Moore), and serves as the "I Want" song of the film.  It is reprised later on once she is allowed out of the castle for the first time.  A short reprise with Rapunzel reiterating her situation, and reasoning that "I've got my mother's love...I have everything" etc., was cut from the final film, though was included in the soundtrack.  Lyrics are by Glenn Slater, and music is by Alan Menken.

Leap of Faith (musical): Leap of Faith is a stage musical based on the 1992 American movie of the same name, which starred Steve Martin.  The music is by Alan Menken, with lyrics by Glenn Slater and a book by Janus Cercone and Slater about a con man posing as a man of faith, who is redeemed by the love of a good woman.

The Little Mermaid Jr (musical): The Little Mermaid is a stage musical produced by Disney Theatrical, based on the animated 1989 Disney film of the same name and the classic story of the same name by Hans Christian Andersen about a mermaid who dreams of the world above the sea and gives up her voice to find love.  Its book is by Doug Wright, music by Alan Menken and lyrics by Howard Ashman (written for the film), with additional lyrics by Glenn Slater.  Its underwater setting and story about aquatic characters requires unusual technical designs and strategies to create gliding movements for the actors.  The Little Mermaid Jr first became available to license by the company Music Theater International and Disney Theatrical Productions

Glenn Slater: Glenn Slater (born 1968) is an American lyricist who collaborates with Alan Menken and other musical theatre composers.  He was nominated for the Tony Award for Best Original Score for the Broadway version of "The Little Mermaid" at the 62nd Tony Awards in 2008, his second Tony nomination for "Sister Act" at the 65th Tony Awards in 2011, and his third Tony nomination for "School of Rock" at the 70th Tony Awards in 2016.

Sister Act (musical): Sister Act is a musical based on the hit 1992 film of the same name, with music by Alan Menken, lyrics by Glenn Slater, book by Bill and Cheri Steinkellner and additional book material by Douglas Carter Beane.  After having a regional premiere in 2006 in Pasadena, California, the original West End production opened on June 2, 2009 at the London Palladium, starring Patina Miller and produced by Stage Entertainment and Whoopi Goldberg.  Subsequent productions have been seen on Broadway and in many countries around the world.

The Little Mermaid (musical): The Little Mermaid is a stage musical produced by Disney Theatrical, based on the animated 1989 Disney film of the same name and the classic story of the same name by Hans Christian Andersen about a mermaid who dreams of the world above the sea and gives up her voice to find love.  Its book is by Doug Wright, music by Alan Menken and lyrics by Howard Ashman (written for the film), with additional lyrics by Glenn Slater.  Its underwater setting and story about aquatic characters requires unusual technical designs and strategies to create gliding movements for the actors.

Supporting paragraphs: Glenn Slater School of Rock (musical)
Answer: Andrew Lloyd Webber