She comforted Marcus Mumford as the two waited to hear an update about Dwane's health.
Mulligan was spotted rubbing her hubby's back and making sure to keep the folk band's frontman in good spirits.
It was announced today that the Mumford & Sons bassist was rushed to the hospital earlier and will undergo an emergency surgery to remove the clot.
The health scare has inevitably forced the band to postpone several upcoming shows including their gigs in New Orleans and Dallas.
The band posted a statement saying that "Ted is receiving excellent care and we are being assured that he will recover quickly from surgery."
They added, "We're all wishing Ted a speedy recovery."