Pregnant Rochelle Humes shows off HUGE baby bump performing with The Saturdays

Rochelle Humes has been keeping her baby bump under wraps over recent days, but last night BOY did she show it off.

Rochelle Humes showed off an impressive baby bumpRochelle Humes showed off an impressive baby bump as The Saturdays performed a show last night. Copyright [Spl …Pregnant Rochelle Humes wore a tight-fitting dress during a performance with The Saturdays last night, showing off her HUGE baby bump.

[Related article: The Saturdays land first American magazine cover-shoot]

[Related article: Rochelle Humes suffering from morning sickness]

Rochelle looked amazing in a tight silver dress which clung to her baby bump and even featured a very sexy thigh-high split.

That is one hot mumma right there.

Rochelle HumesRochelle Humes' baby bump has definitely grown over the past week. Copyright [Splash]After the show Rochelle was spotted meeting up with hubby Marvin Humes, but by that point the pregnant singer had slipped into a pair of comfy looking high-top trainers.

She then took to Twitter to tell followers she was on a 'real high'.

Rochelle HumesRochelle Humes is now five months into her pregnancy. Copyright [Splash]She said: "I'm still smiling :-). That was an amazing show...perfect crowd :-) on a massive high...Thanks to you all. The Sats are deffo having a love affair with today :-) #bestday."

Earlier in the day, Rochelle Humes looked equally as amazing as The Saturdays took on their first US signing.

The SaturdaysThe Saturdays posed for photos at their first American signing earlier in the day. Copyright [Rex]Rochelle showed off her baby bump in a black and white print dress as the girls signed posters and CDs for their American fans.

Rochelle Humes recently admitted that although being five months pregnant, she isn't that prepared for motherhood.

She said: "I'm sort of finding out [about motherhood] as I go along."

Well at least she has pregnancy style nailed.