As Bruce Buffer's famous line goes: it's time.
Conor McGregor makes his UFC return in the early hours of Sunday morning when he faces Donald Cerrone.
The bout takes place at the T Mobile Arena in Las Vegas and is the main event for UFC 246.
It will be McGregor's first fight since losing to Khabib Nurmagomedov over 15 months ago.
Here's everything you need to know about it:
Where and when is it?
The fight takes place at the T Mobile Arena in Las Vegas in the early hours of Sunday, January 19 Irish time.
What time is the main event on at?
McGregor's fight is expected to start around 5am Irish time.
What channel is it on in Ireland?
BT Sport Box Office are showing the fight live.
It costs €29.99.
Full card
Main card
Conor McGregor vs. Donald Cerrone
Holly Holm vs. Raquel Pennington
Maurice Greene vs. Aleksei Oleinik
Brian Kelleher vs. Ode Osbourne
Diego Ferreira vs. Anthony Pettis
Prelims
Maycee Barber vs. Roxanne Modafferi
Andre Fili vs. Sodiq Yusuff
Askar Askarov vs. Tim Elliott
Drew Dober vs. Nasrat Haqparast
Early Prelims
Aleksa Camur vs. Justin Ledet
J.J. Aldrich vs. Sabina Mazo
Betting odds
Conor McGregor win: 1/3
Donald Cerrone win: 2/1
