Hollie Dance, 50, and Thomas Summers, 26, were convicted of grievous bodily harm by a jury at Basildon Crown Court on Wednesday after around two hours of deliberations.
The Britain's Got Talent star, 54, who shares daughters Hollie and Lexi, 20, with her husband husband Chris Hughes, took to Instagram to mark the occasion.
The TV personality, 54, was flanked by daughters Lexi, 19, and Hollie, 13, as the glamorous trio enjoyed some family time outside the city's legendary Beverly Hills Hotel.
The BGT judge, 54, has revealed her youngest daughter goes out of her way to avoid being seen with her - insisting the teenager wants 'no connection' with her famous mum.