Beyoncé Knowles and Jay Z acted like “newlyweds” at her sister’s wedding.

The couple, whose marriage was rumoured be on the rocks earlier this year, reportedly looked more in love than ever as they partied at the ‘Pretty Hurts’ hitmaker’s younger sibling Solange Knowles and husband Alan Ferguson’s reception in New Orleans, Louisiana last Sunday (16.11.14).

A source told Us Weekly magazine: “Beyoncé and Jay Z were dancing up a storm. It was like they were newlyweds.”

The 32-year-old singer was moved to tears as her 28-year-old sister exchanged vows with the video director in front of 100 guests, including Janelle Monae and Questlove.

Guests dined on shrimp, grits, oyster bisque and chicken roulade before taking to the streets for a wedding parade.

The couple then hosted a cocktail hour in the yard of the city’s Marigny Opera House after tying the knot there and then boarded a bus dubbed the Boom Boom Room to take them to the New Orleans Art Museum for an after-party.

Beyoncé and Jay Z, who have two-year-old daughter Blue Ivy, renewed their wedding vows in Paris in September after getting their marriage back on track.