Seolhyun�couldn't be present because she was busy filming 'Ugly Alert', but the rest of the girls thanked their fans for the cake they prepared to celebrate! Leader Jimin�took to Twitter�to write, "Thank you so so much for celebrating AOA's first birthday! You'll be with us for a long time from now on, right?? I love you, Elvis!! Kekekekekekeke meow".

SEE ALSO: ILLIT praised for making a significant improvement in recent encore live performance

The girls also posted photos on their Facebook�to thank their fans for their 1st year. Congratulations to AOA!

Tip: Wade