Half of the Ant & Dec duo who hosted I'm a Celebrity...Get Me Out of Here and Ant & Dec's Saturday Night Takeaway. He shared the Best Entertainment Presenter and Best Entertainment Award with his partner, Anthony McPartlin.
He became known as part of the pop duo, PJ & Duncan on TV's Byker Grove after graduating from St. Michael's Roman Catholic Primary School and St. Cuthbert's High School.
He hosted the popular talent show Britain's Got Talent.
He is the son of Anne and Alphonsus Donnelly; he has six older siblings named Dermott, Moira, Camelia, Eamonn, Patricia, and Martin. In 2015, he married Ali Astall. They welcomed a daughter named Isla in 2018.
He teamed up with Anthony McPartlin to become one of the most well-known television presenters in Britain's history.