Williams wore a white chiffon Vera Wang wedding dress, paired with Doc Marten Jadon boots, while her beau sported an all-black suit and a tartan Ben Sherman shirt.
The two were also photographed tasting their wedding cake, which was made up of three tiers of 100 doughtnuts bearing quotes such as "I like your butt," made by Five Daughters Bakery.
The Agent Carter actress stars alongside Philippa Coulthard and Matthew Macfadyen in the four-part adaption of Forster’s 1910 novel.
The dark TV drama - already dubbed by some as the next Downton Abbey - explores the changing landscape of social and class divisions in turn of the century England through the tales of three families.
Hayley starred in the legal drama Conviction, playing a defence attorney and the daughter of a US president.
Paramore is an American rock band from Franklin, Tennessee, formed in 2004.
20, Paramore frontwoman Hayley Williams married Chad Gilbert from New Found Glory in the pop-punkiest wedding of 2016!
Above, the newlyweds pose in front of the Franklin Theatre in Franklin, Tenn.
Williams and Gilbert applied for a marriage license in Tennessee last month, had reported.
Several eyewitnesses and fans posted on social media adorable photos from their wedding ceremony and the reception.
Paramore has since released four more studio albums, Riot!