Emotions were high when Brad Pitt reunited with his kids for the first time since Angelina Jolie filed for divorce last month.

While it’s unclear how many of their six children — Maddox, 15, Pax, 12, Zahara, 11, Shiloh, 10, and twins Knox and Vivienne, 8 — were there, it was more than enough to turn Brad's rough month around.

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“Once the kids came in, Brad lit up,” a source close to the family tells In Touch. “He had tears in his eyes and tried to hold it together because he didn’t want them to get upset because he was crying.”

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Brad wasn’t the only one who was crying during the visit.

“The visit was gut-wrenching. Vivienne and Zahara both started crying, asking when they could go home [to Brad’s LA compound,” the source adds. “He said it would be soon.”

Scroll through to see the kids grow up before your very eyes!