ACM Awards: Carrie Underwood and Friends Shine at Party for a Cause

"ACM Women of Country Night" Also Stars Cam, Kelsea Ballerini, Kellie Pickler and Others

Carrie Underwood and an all-female cast kicked off the Academy of Country Music’s fourth annual ACM Party for a Cause festival Friday (April 1) in Las Vegas.

performs onstage at the 4th ACM Party for a Cause Festival at the Las Vegas Festival Grounds on April 1, 2016 in Las Vegas, Nevada. Mark Davis/Getty Images for ACM

One of several events leading up to Sunday night’s ACM Awards show at the MGM Grand Garden Arena, the special “ACM Women of Country Night” also featured Cam, Kelsea Ballerini, Martina McBride, Kellie Pickler, Maddie & Tae, Lauren Alaina, Kelleigh Bannen, Brandy Clark and Jana Kramer.

Cam

LAS VEGAS, NEVADA - APRIL 01:  Singer Cam performs onstage at the 4th ACM Party for a Cause Festival at the Las Vegas Festival Grounds on April 1, 2016 in Las Vegas, Nevada.  (Photo by Gabe Ginsberg/WireImage) Gabe Ginsberg/WireImage

Kelsea Ballerini

performs onstage at the 4th ACM Party for a Cause Festival at the Las Vegas Festival Grounds on April 1, 2016 in Las Vegas, Nevada. Getty Images

Martina McBride

LAS VEGAS, NEVADA - APRIL 01:  Singer Martina McBride performs onstage at the 4th ACM Party for a Cause Festival at the Las Vegas Festival Grounds on April 1, 2016 in Las Vegas, Nevada.  (Photo by Mark Davis/Getty Images for ACM) Mark Davis/Getty Images for ACM

Kellie Pickler

LAS VEGAS, NEVADA - APRIL 01:  Singer Kellie Pickler performs onstage at the 4th ACM Party for a Cause Festival at the Las Vegas Festival Grounds on April 1, 2016 in Las Vegas, Nevada.  (Photo by Isaac Brekken/Getty Images for ACM) Isaac Brekken/Getty Images for ACM

Maddie & Tae

LAS VEGAS, NEVADA - APRIL 01:  Tae Dye (L) and Maddie Marlow of Maddie & Tae perform during the ACM Party for a Cause Festival at the Las Vegas Festival Grounds on April 1, 2016 in Las Vegas, Nevada.  (Photo by Mindy Small/FilmMagic) Mindy Small/FilmMagic

Lauren Alaina

LAS VEGAS, NEVADA - APRIL 01:  Lauren Alaina performs during the ACM Party for a Cause Festival at the Las Vegas Festival Grounds on April 1, 2016 in Las Vegas, Nevada.  (Photo by Mindy Small/FilmMagic) Mindy Small/FilmMagic

Kelleigh Bannen

LAS VEGAS, NEVADA - APRIL 01:  Kelleigh Bannen performs during the ACM Party for a Cause Festival at the Las Vegas Festival Grounds on April 1, 2016 in Las Vegas, Nevada.  (Photo by Mindy Small/FilmMagic) Mindy Small/FilmMagic

Brandy Clark

LAS VEGAS, NEVADA - APRIL 01:  Singer Brandy Clark performs onstage at the 4th ACM Party for a Cause Festival at the Las Vegas Festival Grounds on April 1, 2016 in Las Vegas, Nevada.  (Photo by Gabe Ginsberg/WireImage) Gabe Ginsberg/WireImage

Jana Kramer

LAS VEGAS, NEVADA - APRIL 01:  Singer Jana Kramer performs onstage at the 4th ACM Party for a Cause Festival at the Las Vegas Festival Grounds on April 1, 2016 in Las Vegas, Nevada.  (Photo by Gabe Ginsberg/WireImage) Gabe Ginsberg/WireImage

Miranda Lambert made a surprise appearance with Underwood’s set to perform “Something Bad,” and Alaina, Bannen, Kramer and Picker all joined Underwood onstage the festival’s grand finale on “Before He Cheats”

During the festival, ACM CEO Bob Romeo presented Ballerini with her ACM Award for new female vocalist of the year.

The ACM Party for a Cause continues Saturday with Dierks Bentley, Frankie Ballard, Lee Brice, Chris Janson, Dustin Lynch, Chris Stapleton, Chris Young, Chase Bryant, Chris Lane, Jackson Michelson and A Thousand Horses.

Kenny Chesney closes the festival Sunday with a full set following his performance on the ACM Awards show. Sunday’s festival lineup also includes Brett Eldredge, Sam Hunt, Kip Moore, Chase Rice, Old Dominion, Lindsay Ell, Maren Morris and Granger Smith.

The 51st annual Academy of Country Music Awards will air Sunday at 8 p.m. ET/PT on CBS.