J.Lo Sparks Plastic Surgery Rumors at Premiere

 became the center of a blizzard of plastic surgery speculation when she on Tuesday.

The 56-year-old's red carpet appearance was a feast for the eyes, from her luminously youthful complexion to her gym-sculpted dancer's physique.

However it was the generous helping of cleavage she served up in her sheer strapless dress that left social media users scratching their heads.

'Are those new? Or have I just never noticed,' one observer marveled on , prompting another to reply: 'Wondering the same thing myself.'

A third remarked: 'Her boobs looking anything but natural,' while a fourth sniggered that she had acquired 'Bolt ,' and a fifth joked: 'But can they sing?'

The Daily Mail has contacted a representative for Lopez for comment. 

Her look was so arresting that even a decided non-fan was forced to concede: 'I can’t stand the woman but man she is freaking gorgeous. New boobies though, right?' 

'She got new boobies,' wrote a viewer, to which another replied: 'literally my brain: “where did those come from?” She looking fly tho, no where near 56.'

However it was the generous helping of cleavage she served up in her sheer strapless mermaid dress that left social media users scratching their heads