The former host appeared as a guest on the talk show yesterday evening and ‘tagged in’ for Jimmy Fallon with a few monologue jokes after his successor ‘pulled his leg’ (more like our leg he’s pulling, wha?).

Well with only a week to go before the US election, Leno was slagging off Hillary Clinton and Donald Trump in no time.

Billy Bush (‘I had a great costume this year, I put a douchebag on my head and went out as Billy Bush’) and Anthony Weiner were also victims to his jokes, as were Bill Clinton (‘I'm with her … and her, and her, and you too, darling’) and Barrack Obama.

Lastly, he rounded the monologue off with a series of ‘the economy’s so bad’ jokes, for which he was re-joined by Fallon: