‘Always fun to be invited to the party!’ See Madonna’s surprise guest at Miami concert

At 65, Madonna is still predictably unpredictable.

On Sunday night during her 72nd stop on the Celebration Tour, the so called Queen of Pop brought up a surprise superstar to join her on stage at the Kaseya Center: Ricky Martin.

The Material Girl and the “Livin La Vida Loca” singer, who both used to own mansions in Miami, go way back professionally and personally.

Martin, 52, recently talked about their relationship on “The Kelly Clarkson Show,” saying Madge gave the former Menudo some great advice when he was first launching a solo career.

“She said, ‘Make sure this industry doesn’t control you,’” said the Puerto Rico native. “It’s very easy to get seduced by fame ... and she helped me.”

The two went on to collaborate on the 1999 track “Be Careful with My Heart.”

On Sunday night, they were together again — in front of almost 20,000 people, to judge a “Vogue” dance contest. (Madonna’s pal, ‘90s nightlife fixture Ingrid Casares, also made a cameo.)

In videos shared on social media, Martin seems to be taking his role seriously, holding up two signs reading the No. 10, for the highest mark, and the other, “Chop,” as male dancers strike various poses to the 1990 hit.

At one point, Martin gets a lap dance from two shirtless, oiled-up performers. As they sashay away, he holds up a “10” laughing, then he and Madonna embrace.

The “Palm Royale” star shared the classic snippet on his own Instagram and thanked the music icon whom he called “my love.”

“Always fun to be invited to the party!” said the post.

On Tuesday night, Madonna hits Kaseya for the last stop of her tour, which began last October in London. General admission tickets for the 8:30 p.m. show are starting around the $189 mark.