Admit it, it's the one question we all would have wanted to ask.

Lady Gaga staged a full blown bloodless coup (all smotherings) of 'The Late Late Show with James Corden' last night and between stealing the opening and making her 'Carpool Karaoke' debut, she took over Reggie's Question for the day, posing the "Friends" question on everyone's mind to Matt LeBlanc: Rachel or Monica?

His answer was very loyal, we'll say that.