Fans of the Spice Girls won't be happy...

As the showbiz world celebrated the spookiest season last night, Mel B‘s choice of Halloween costume may leave a bitter taste in the mouths of Spice Girl fans…

Attending Heidi Klum‘s infamous Halloween bash in New York yesterday, 43-year-old Mel B shunned a classic costume – opting to go as former bandmate Victoria Beckham instead.

Yikes!

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Attending the ‘do with close ‘pal Gary Madatyan, who dressed as VB’s hubby David, Mel shocked fans with her choice of spooky attire – taking a ginormous swipe at 44-year-old Victoria.

Wearing a Posh Spice face mask and a Victoria-esque LBD, Mel carried a sign which read: ‘NO I AM NOT GOING ON TOUR.’

Gary meanwhile held a sign that said: ‘Please, please, please do it for the Spice fans.’

Mel’s choice of costume is pretty telling – as the ladies have reportedly fallen out over a little bad blood.

According to allegations, Posh’s refusal to take part in the Spice Girl’s reunion tour next year has angered Mel.

Whilst neither party commented on the accusations of a rift, Mel’s feelings are now pretty clear…

Sharing a snap of her explosive get-up on Instagram, Mel said: ‘Yipppppeeee NY Halloween party is ON.’

View this post on Instagram

Yipppppeeee NY Halloween party is ON

A post shared by Scary Spice Mel b (@officialmelb) on

Fans were very quick to comment on the explosive snap – with users divided over Mel’s decision to shade VB.

‘Omg is she shading @victoriabeckham ?! Lmao,’ said one.

Another added: ‘Wow the shade!’

Sharing another snap, Mel revealed she’d had an amazing night at the A-List ‘do.

‘Me and @gary_90210 never laughed soooo much #livingmybestlife,’ she said.

Victoria appears keen to stay out of the drama, opting instead to share her own Halloween get-up on Instagram.

Debuting a much more PG look, VB posed in a bad bunny mask – complete with button eyes and a menacing grin.

View this post on Instagram

Happy #Halloween! X VB

A post shared by Victoria Beckham (@victoriabeckham) on

What are your thoughts on Mel’s explosive costume? Tweet us @CelebsNow!