Adele feels "embarrassed" for America after watching Donald Trump in a US presidential debate.

Adele

Adele

The 'Rolling In The Deep' hitmaker slammed the US Republican candidate, admitting she "feels sorry" for the country.

Speaking to the crowd at her concert in Washington DC, she said: "I feel sorry for you. Did anybody watch the debate last night? Oh my f***ing God.

"I watched the debate, and you should know who I like and who I do not f***ing like. I'm embarrassed for you."

Adele has criticised Donald Trump in the past when he used her music for a presidential campaign without her permission.

The 28-year-old singer was inundated with messages on social media asking if she backed the potential leader, something which she denied.

Her spokesperson said at the time: "Adele has not given permission for her music to be used for any political campaigning."

Meanwhile, Adele is not the only pop star to ban Trump from using her music.

In February, Aerosmith's Steven Tyler sent the 'Celebrity Apprentice' star an official cease and desist letter to ban him from using their song 'Dream On'.

The band said at the time: "[Trump does] not have our client's permission to use Dream On [as it] gives the false impression that he is connected with or endorses Mr Trump's presidential bid."

And The Rolling Stones also told Trump to stop using their music but he defied their wishes, choosing the Republican National Convention to play their hit track 'You Can't Always Get What You Want'.