Sound lad in fairness.
Be honest, how would a brother of yours react if you were to take part in a dancing competition - would he burst himself laughing or would he get behind you and lend his support in a soppy social media post?
Conor McGregor proved himself to be a stand-up younger brother last night when he shared kind words for his sister Erin on Instagram.
The 34-year-old is taking part in RTÉ's
Dancing With The Stars and Conor reckons she 'killed it' last night, posting a photo of the siblings looking very different to how they look now.
"YUPYA the McGregors!," the MMA star wrote.
"@Erinmcgregor123 through to the next round on @rteone's Dancing with the Stars!! Thank you everyone for voting.
"This picture was taken 7 years ago today! Dolce on the scratch hahahah."
Conor had urged his 22 million Instagram followers to get behind her earlier in the night too.
Erin and partner Ryan McShane picked up 21 points from the judges for their
Kill Bill-themed movie week routine.
Erin was voted through by the public, meaning she'll dance again next week.
Rugby player Tomás O'Leary meanwhile became the second celebrity to leave the show.
