Machine Gun Kelly, an American rapper, astonished his fans last week when he made a surprise appearance on The Kelly Clarkson Show to wish his buddy Kelly Clarkson a happy birthday.

On Sunday, the star of Mainstream Sellout appeared on stage in her slippers to wish Clarkson a happy birthday (April 24).

To commemorate the Stronger singer’s 40th birthday, MGK sent a queso fountain, margaritas, and a mariachi band.

“It’s been 15 minutes since I awoke. The Bloom singer explained, “I forgot my sneakers.” “So, on your birthday, you awoke to… Clarkson responded, “Oh, that’s nice.”

Megan Fox, MGK’s fiancée, tweeted a beautiful birthday message for the rapper on Saturday. “The rest of the world has no idea what a lovely, loving heart you have.” What a generous and considerate person you are… “How insanely odd, brilliant, and witty you are…” she captioned.