Kathy Griffin claims she's blacklisted from The Tonight Show after not being booked by Jimmy Fallon since 2011… but insider reveals real story

said she thinks that she's banned from appearing on The Tonight Show Starring for being 'too controversial,' but insiders close to the NBC late night star insist otherwise. 

The 65-year-old comedian took to Instagram on Tuesday with a clip in which she said she has not appeared opposite Fallon, 51, since he took over the main NBC late night program in 2014.

'I have not done the Jimmy Fallon show since it was on at 12:30 Eastern and Pacific,' the Emmy-winning comic said. 'So I guess I'm banned from the Fallon show, or inappropriate or too controversial - I don't even know.'

Griffin was referring to his previous program, Late Night with Jimmy Fallon, on which she made two appearances, in 2010 and 2011. 

A source close to Fallon with knowledge of the situation told the Daily Mail on Wednesday that 'there is no ban on Kathy Griffin.' 

The Daily Mail has reached out to representatives for Griffin for further comment on the story. 

The Oak Park, Illinois native continued, 'When you're banned from a show … they don't usually tell you you're banned, they just can't seem to find room for you.'

Fallon, 51, seen on The Tonight Show on June 15