Two-time Grammy nominee Jennifer Lopez was ‘back on the block’ on Friday for the first of two sold-out concerts at Madison Square Garden in her native New York.

The Bronx-born pop diva – turning the big 5-0 in 12 days – was wearing what she’s joked was her ‘birthday suit’ which bares only ‘one cheek.’

The former Fly Girl’s Swarovski crystal-embellished Versace lavender jumpsuit, selected by stylist Rob Zangardi, showcased her phenomenally fit 5ft5in figure.

Home sweet home: Two-time Grammy nominee Jennifer Lopez was ‘back on the block’ on Friday for the first of two sold-out concerts at Madison Square Garden in her native New York

‘That’s all you get!’ The Bronx-born pop diva – turning the big 5-0 in 12 days – was wearing what she’s joked was her ‘birthday suit’ which bares only ‘one cheek’

Hairstylist Frank Galasso coiffed Jennifer’s waist-length hair extensions for the show, which is part of her 36-date, $6.4M-grossing It’s My Party Tour.

Lopez performed 20 of her hits including Jenny from the Block, Love Don’t Cost a Thing, Waiting for Tonight, and I’m Real.

‘Back on the block!’ the Golden Globe nominee – who boasts 192.3M followers – wrote via Instastory.

‘NYC, the party is here! I’m back baby!’

19 costume changes! The former Fly Girl’s Swarovski crystal-embellished Versace lavender jumpsuit, selected by stylist Rob Zangardi, showcased her phenomenally fit 5ft5in figure

Dipped: Hairstylist Frank Galasso coiffed Jennifer’s waist-length hair extensions for the show, which is part of her 36-date, $6.4M-grossing It’s My Party Tour

Spotlight: Lopez performed 20 of her hits including Jenny from the Block, Love Don’t Cost a Thing, Waiting for Tonight, and I’m Real

The Golden Globe nominee – who boasts 192.3M followers – wrote via Instastory: ‘Back on the block! NYC, the party is here! I’m back baby!’

Backstage, the thrice-divorced mother-of-two’s fiancé Alex Rodriguez got primped by her make-up artist Scott Barnes.

‘Bronx to Madison Square Garden. For a cab driver, it’s just a 9.2-mile ride,’ the 43-year-old Fox Sports commentator gushed on Instagram.

‘But for @jlo, the road from being a kid running around with holes in her shoes in the Bronx to headlining at the world’s most famous arena, was long and arduous and took years of hard work and relentless dedication. Keep on killing it girl.’

JLo and ARod – who got engaged March 9 – already consider their blended brood (from past marriages to Marc Anthony and Cynthia Scurtis) one big happy family.

‘Why am I here?’ Backstage, the thrice-divorced mother-of-two’s fiancé Alex Rodriguez got primped by her make-up artist Scott Barnes

The 43-year-old Fox Sports commentator gushed: ‘Bronx to Madison Square Garden. For a cab driver, it’s just a 9.2-mile ride. But for @jlo, the road from being a kid running around with holes in her shoes in the Bronx to headlining at the world’s most famous arena, was long and arduous and took years of hard work and relentless dedication. Keep on killing it girl’

‘On the floor!’ The retired Yankee danced up a storm in the VIP section alongside his pal, Starwood Capital Group CEO Barry Sternlicht

Blended brood: Earlier on Friday, JLo gave her Burberry-clad 11-year-old son Max (with ex-husband #3 Marc Anthony) a kiss on the head near ARod’s 11-year-old daughter Ella (with ex-wife Cynthia Scurtis)