Heading in the labor and delivery room can be one of the most memorable moments of your life.
As a first-time father waiting for the birth of their child, they can nervously be pacing up and down the hallways of the hospital or sitting by the mother-of-their-child's bedside, coaching her through the contractions.
While mom may be going through the pain of contractions and finally birthing the baby, dads are often along for the ride with her, also experiencing no sleep and trying to help where they can.
These celebrity dads are no exception.
When Blake Lively was in labor with baby James, Ryan Reynolds played her a motivational song to get her through.
He sang Marvin Gaye's "Let's Get It On."
Blake's reaction? "It was like steak knives came out of her eyes. ... Yeah. Real bad," Reynolds said.
After a couple of curse words, she was just fine.
"My doctor was laughing so hard that I thought she was going to drop our baby," Lively confessed.
McConaughey also got musical when his wife-to-be Camila was in labor.
“Contractions started kicking in, and we found a great rhythm,” McConaughey told OK! “We had a 14-hour session, her and I did. I sat there with her, right between her legs. We got tribal on it. We danced to it. I was DJing this native Brazilian music.”
After the birth McConaughey got baby Levi all to himself while medical staff took care of Camila.
“I had him for the first 15 minutes because they had to take care of Camila,” he relates. “I said, ‘Come here, little man.’ I saw the pecker and screamed that we’d been right all along about him being a boy. Then I brought him over to her.”
“I have it all chronicled,” he explained. “Becoming a dad is something I’ve dreamed of doing since I was 10. Becoming a father felt very, very natural. We were jamming!" he said.
While he can dance, he didn't bust any moves while his wife Jenna was in labor.
While Jenna gave birth to baby Everly, Tatum was overcome with emotion about the whole event.
"I probably went to the bathroom four times and had a crying fit," Tatum said. "Like, I'm just like, 'I don't know what to do!'"
"It's like someone's hurting someone that you love, and you can't do anything about it," Tatum continued. "You physically cannot help."
"I'm still not helping — and the baby's out!" Tatum added. "Men are useless, but we are really useless during this. The baby's gonna come out whether you're there or not."
How would you deal with the mother-to-be saying you can't leave the room for her 27 hour labor? Time to get creative.
Miranda Kerr wouldn't let Orlando Bloom leave the room during her 27-hour labor, which forced him to pee in a bottle.
"I wouldn't even let him leave during it. He had to pee in a bottle. He stayed there the whole time, he is a wonderful father and I am really blessed," Kerr said.
Kerr had decided to have a natural birth, refusing drugs including an epidural, which Bloom offered to take in her place.
"And he said, 'Give me the epidural! Seriously, if you don't want it I'll take it because right now I'm dying watching you go through this pain'," she said.
She had underestimated the size of baby Flynn, who is named after Kerr's teenage boyfriend who died in a car accident suddenly when they were young.