Kacey Musgraves celebrates her 31st birthday at a Cher concert in Las Vegas as she sings along: 'I have no choice I have to cover it!'

Kacey Musgraves turned 31 on Wednesday and celebrated alongside Cher.

Just a day following a Vegas performance as part of her Oh, What a World tour, the country singer enjoyed a concert by Cher in the same city.

Musgraves, 31, tweeted multiple videos from the show from the audience including one in which she and her friends sing and dance along to the pop legend's 1998 smash Believe.

Belt it out: Musgraves, 31, tweeted multiple videos from the show from the audience including one in which she and her friends sing and dance along to the pop legend's 1998 smash Believe

Belt it out: Musgraves, 31, tweeted multiple videos from the show from the audience including one in which she and her friends sing and dance along to the pop legend's 1998 smash Believe

She wrote next to one of the clips: 'I have no choice I have to cover it.'  

The Follow Your Arrow songstress also labeled Cher, 70, a 'septuagenarian queen' in another one of her captions, referring to the diva's age.

Musgraves even got the chance to meet Cher backstage after the show.

Star-struck: Musgraves even got the chance to meet Cher backstage after the show

Star-struck: Musgraves even got the chance to meet Cher backstage after the show

Celebrate: 'Thanks for all the birthday love,' Musgraves captioned a series of photos that featured a rainbow cake designed as a smiley face with a single tear

Celebrate: 'Thanks for all the birthday love,' Musgraves captioned a series of photos that featured a rainbow cake designed as a smiley face with a single tear

Birthday girl: In reference to her album's title Happy & Sad, she continued: 'Happy to be alive [purple heart emoji] Sad time flies sooo fast'

Birthday girl: In reference to her album's title Happy & Sad, she continued: 'Happy to be alive [purple heart emoji] Sad time flies sooo fast'

Next to the photo, Musgraves expressed that she was starstruck by adding in a starry-eyed emoji. 

Musgraves hasn't kept mum about her love for the pop icon, particularly regarding her unmissable style. 

'Cher’s a big style icon to me. I love her. If I can just get my abs lookin’ like hers … that would be the goal,' she told Stereogum in 2018, according to People.  

'That long, straight hair, and, I don’t know, just kinda that disco vibe, it’s inspiring to me,' she explained.

Following the festivities, Musgraves said thanks to all who sent their well wishes on the milestone. 

'Thanks for all the birthday love,' Musgraves captioned a series of photos that featured a rainbow cake designed as a smiley face with a single tear.

In reference to her album's title Happy & Sad, she continued: 'Happy to be alive [purple heart emoji] Sad time flies sooo fast.'    
Yum: 'Thanks for all the birthday love,' Musgraves captioned a series of photos that featured a rainbow cake designed as a smiley face with a single tear

Yum: 'Thanks for all the birthday love,' Musgraves captioned a series of photos that featured a rainbow cake designed as a smiley face with a single tear

Kacey Musgraves celebrates her 31st birthday at a Cher concert in Las Vegas

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