“Good morning Atlantis. This Beyonce.” That’s how Mrs. Carter greeted astronauts aboard the space shuttle Atlantis today in a pre-recorded message, after a snippet of “Run The World (Girls)” introduced her. The pop superstar with the #1 album in America provided the message as a treat for NASA on the Day 9 of the shuttle’s final mission. (Remember, B was born and bred in Houston, home to NASA’s main flight HQ. And she had a special shout-out for one of the spacecraft’s four travelers. Find out which one below.

“Sandy, Chris, Doug, and Rex, you inspire all of us to dare to live our dreams — to know that we’re smart enough and strong enough to achieve this. This song is especially for my girl Sandy and all the women who’ve taken us to space with them, and the girls who are our future explorers,” Beyonce said in the message.