Florence + the Machine have pulled out of the Benicassim Festival 2012.

The 'You've Got the Love' hitmakers have been forced to the cancel their headline performance at the Spanish music event tomorrow (12.07.12), as well as one at the Optimus Alive fest in Portugal on Saturday (14.07.12), after frontwoman Florence Welch sustained a ''vocal injury'' and was advised by doctors not to sing for a week.

In a post on the band's official website today (11.07.12), the flame-haired singer wrote: ''Hello everyone, thank you so much for all your messages of support, yes its true ... it finally happened, I've lost my voice :(

''I've sustained a vocal injury and been told I cannot sing for a week.. seriously I felt something snap, it was very frightening. Unfortunately this means I will not be able to perform at Benicassim and Optimus Alive Festival this weekend...I am so so sorry. I'm so sorry to all the fans, I was desperate to still perform, but was told without question not to, so as not to do permanent damage..x (sic)''

Despite her obvious disappointment at being forced to cancel the group's two European dates, Florence promised to make it up to fans in the future.

The post continued: ''I hope i can make it up to you in the future, have an amazing time...yours croakily florence...x (sic)''