The former Sugababes singer, 30, took to Twitter to confirm that she and record label boss Marcio Sousa Rosa had tied the knot.
Amelle shared a snap of her and Marcio showing off their wedding rings, writing: "Mr and Mrs Sousa Rosa"
She added: "Sorry for the sudden announcement but I am officially Mrs Sousa Rosa!!!"
The couple began the celebrations immediately, tucking into a delicious-looking lobster dinner, with an extremely happy looking Amelle posting: "Having lobster with my husband! #CantBelieveIt #MagicalDay"
Taking to Instagram last Saturday to confirm her engagement, Amelle wrote: "We're engaged! Some spend a lifetime trying to find their other half… Their one true love… Like a jigsaw where you fit together completely and then compete each others souls.
"Ive found him and he has found me… The other part of me… My true love [sic]."
Following the marriage announcement, Amelle continued to post gorgeous pictures of the couple's honeymoon.