Photos: Uh-Oh: Twitter feud between Donald Trump & Katy Perry's ex-husband, Russell Brand

Yikes! Twitter diss  between businessman Donald Trump and comedian Russell Brand yesterday, Thursday October 16.

I never knew Trump got financial aid from the US government and also inherited $$$ from his folks!

Nor be small tin o...read on!!!

The digital fight started when Trump tweeted that the Forgetting Sarah Marshall star is a 'major loser.' Brand, however, hit back - and eventually suggested that Trump is not the entrepreneur he has claimed to be, by linking to an an article that mentioned his multi-million dollar inheritance and financial aid from the US government.

'I watched Russell Brand @rustyrockets on the @jimmyfallon show the other night—what the hell do people see in Russell—a major loser!' Trump first wrote.

Trump's comments came three days after Brand appeared on 'Late Show with David Letterman' on Monday. Brand is not scheduled as a guest this week on 'The Tonight Show Starring Jimmy Fallon'.

Trump then published another tweet, which read '.@katyperry must have been drunk when she married Russell Brand @rustyrockets – but he did send me a really nice letter of apology!'

It was not immediately clear what 'letter of apology' Trump was referring to.  

Perry and Brand were married in 2010 and divorced two years later, with Perry telling Vogue in June 2013 that Brand announced his intention to divorce in a 2011 New Year's Eve text message.

Brand soon retaliated and responded to Trump's second message with jokes about Trump's sobriety and his much-lampooned hairline.

'.@realDonaldTrump are you drunk when you write these tweets? Or does that foam you spray on your bald head make you high?' he tweeted.

Brand later tweeted '.@realDonaldTrump I don't think your daddy left you any witty ripostes, and everything you have you inherited.'

Included in that tweet was a link to an excerpt from 'The Self-Made Myth: The Truth About How Government Helps Individuals and Businesses Succeed' - which disputed Trump's image that he independently built a real estate empire.

Trump inherited between $40million and $200million from his father Fred Trump - who himself received government funds in both the Great Depression and World War Two for projects, according to the excerpt.