During the Eras Tour, Taylor Swift identified two obvious fans and chose to Speak Now.
In her acoustic performance on Friday in Philadelphia, Swift, 33, yelled out Inez and James, the children of Ryan Reynolds and Blake Lively, while wearing a stunning red Ashish coat.
While it's unclear what she says off-mic in a fan-shot video from the event, it appears she says "hi" to each of them as she smiles broadly in the middle of her song.
The two oldest children of Lively and Reynolds, James, 7, and Inez, 6, came prepared to Philadelphia to support "Aunt" Taylor.
The two young children were also seen leaving the stage with their mother, 35, and Swift, who was holding hands with James and waving to the crowd on Friday.
Reynolds, 46, and Lively, who have a 3-year-old daughter named Betty, also had a fourth child in February.
Swift also mentioned during the performance that she wanted to create characters for the Folklore album after composing a lot of songs about her own life and gave those characters the names Betty, James, and Inez.
Along with Gigi Hadid and the artist sisters Alana, Danielle, and Este Haim, Lively, and Swift were pictured in April on a girls' night out in New York City.
Swift opted for a short Simkhai spaghetti-strap dress with a silver chain along the hemline, while Lively opted for a more casual look with loose-fitting trousers, a black T-shirt, a gold necklace, and stilettos.