Conor McGregor and his partner Dee Devlin partied the day away at Longitude on Sunday.
The UFC star, 30, and Dee, 31, looked loved up as they danced around Marlay Park with a group of friends.
Conor posted a series of photos on Instagram as the parents of two partied to a host of acts including megastar Cardi B.
They are both seen enjoying some of the fighter's own whiskey brand with Dee calling a bottle her "accessories" as she hid it in her handbag.
The Wakinstown native was joined by Conor’s sister Aoife McGregor, as well as Erin McGregor’s daughter Taylor.
Conor wore a Dolce & Gabbana t-shirt with white shorts, while Dee stunned in a light blue polka-dot dress.
In videos posted to Instagram, the Notorious can be seen shadow boxing with pal Gerry Vegas, who he supported in his MMA debut in Dublin earlier this year.
It comes as Tyson Fury has opened on his friendship with McGregor, revealing that the pair are no strangers and enjoy sharing a couple of drinks.
Fury is gearing up for a grudge rematch with Deontay Wilder later this year, but that hasn't stopped him and the former UFC two weight champ putting away a few Proper no.12 whiskeys.
When asked about his relationship with the Dubliner, Fury revealed that the pair are friends and that they'd enjoyed plenty of nights out together.
"Conor McGregor is a supporter of the Gypsy King, as I am of his. We're two bad motherf*****s," Fury told Behind the Gloves.
"I’ve met him loads of times. We’ve been out drinking loads of times before."
"Let’s just say there was a lot of Proper Whiskey."
And ahead of Fury's emphatic win over Tom Schwarz last month, McGregor hailed him as the best heavyweight of his era.
The former two-weight UFC champion tweeted: "This is what fully committed pad work looks like, amazing!
"Welcome to The Mac Life “Gypsy King” Tyson Fury ! Leading the game from all angles.
"Enjoy Sin City my man; we are not here for a long time, we are here for a good time. Atta boy Tyson, The number one heavyweight boxer of this era."
Fury worked out on the pads with trainer Ben Davison and said: "I plan to box until I can't box any more.
"I feel fantastic at the minute. Boxing keeps me really happy, and I'm very happy with where I am in my life at the minute.
"I want to box on; I don't see myself retiring. I just turned 30 years old; I've got over 10 years left in this game, so you'll have to keep seeing me for the next 10 years, I'm afraid."
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