The mother of one of the members of Collabro, who won Britain's Got Talent, said she was jumping up and down so much when the group's victory was announced that she fell down the stairs.
Lorraine Lambert, whose son Jamie is one fifth of the classical group, said she wasn't injured by the fall but is now "black and blue".
More top news
The constituency of Washington and Sunderland West includes the UK's largest car plant, which was opened by Nissan in 1984.
This seat was formed prior to the 2010 General Election, taking in Sunderland city centre and the Ryhope area to the south.
The constituency of Stockton South includes relatively affluent areas like Yarm and Eaglescliffe.