Beyonce invited three of the survivors of the Boston Marathon bombings to hang out with her backstage during a stop of the Mrs. Carter Tour at the TD Garden on Tuesday night.

Wearing a white leotard, Beyonce was photographed with Mery Daniel, Adrianne Haslet and Heather Abbott. All four of them are seen with big smiles on their faces.

See a photo of the four ladies here.

Daniel, Haslet and Abbott each had a limb amputated after the April attack. They appeared on the cover of an issue of People magazine back in June and spoke about their experience with learning to walk again.

"Picking things up off the floor, getting food, things that I used to be able to do independently now I no longer can do," Daniel told the magazine.

The Mrs. Carter Show on Tuesday drew a sold-out crowd of 12, 845 fans, according to the Boston Globe. Beyonce performed her older hits including Love To Love You Baby, Naughty Girl and Crazy in Love. She also sang her newer tunes like Party, Single Ladies and Irreplaceable.

This isn't the first time, however, that the 31-year-old demonstrated her compassion. On July 13, the star paid tribute to Trayvon Martin, the same day George Zimmerman was found innocent for killing the 17 year old.

"I'd like to have a moment of silence for Trayvon," she told the crowd, according to The Hufffington Post.

Following those words, she performed a rendition of Whitney Houston's I Will Always Love You.

Beyonce showed more support for Martin when she participated in a rally with her husband Jay Z in New York on Saturday. The couple was photographed with Reverend Al Sharpton and Martin's mother Sybrina Fulton.

"Jay Z and Beyonce said they didn't want to speak and they didn't come for a photo op," Sharpton told attendees, according to The Huffington Post. "Jay Z told me, 'I'm a father. Beyonce is a mother.' We all feel the pain and apprehension -- the laws must protect everybody, or it doesn't protect anybody."

Tags: Beyonce Mrs. Carter Tour