Jessica Biel eating a burger in Tel Aviv. Photo: Instagram.

As Justin Timberlake readied to rock an incandescent musical performance Wednesday night, his actress wife Jessica Biel took off to take a personal bite out of the “Big Orange.”

While Timberlake prepped at the soundcheck at Hayarkon Park, Beil and Co., with bodyguards in tow, headed over to downtown Tel Aviv’s highly rated Abraxas North baristo-bar.

While hubby was busy ironing out the setlist, Biel tweeted fans a B&W selfie as she plowed through a big juicy burger, with the caption, “Abraxes. In Tel Aviv. Best burger I ever had.”

Which was kind of fitting, since Wednesday was – wait for it – “National Burger Day” in the States, and, well, enough with the MedRim and humous cuisine, right?

Twitter fans immediately cheered on the Hollywood starlet, with some suggesting other eateries she should try, and one wryly thanking her for “sharing your weight loss plan with us.”

After dinner, paparazzi photographers caught Biel’s satisfied grin as she headed back to her Landrover and the performance.

Timberlake’s show, performed in front of more than 45,000 screaming fans, wowed local music reviewers, who unanimously praised the blockbuster act.