Jennifer Lopez treats her daughter Emme to a shopping spree

She just released her sunglasses collection for Quay Australia.

And Jennifer Lopez looked ready to treat herself for all the hard work as she was spotted on a shopping spree with daughter Emme, 11, in New York on Wednesday.

The 49-year-old superstar rocked a luxurious scarf as the mother/daughter duo were joined by Jennifer’s sister Lynda during their retail therapy session.

Daring to impress, the Jenny From The Block songstress was sophisticated chic in her light grey overcoat and matching leggings.

Her trademark brunette tresses were swept up in a messy bun allowing a full view of her youthful face.

She paired the fashion forward look with a set of retro shades and white sneakers as she carried a cute handbag.

The outing comes the same day as Jennifer and beau Alex Rodriguez’s new campaign for Quay Australia was released.

Jennifer and Alex both launched separate collections – QuayXJLO and QuayXAROD with the brand.

The QuayXJLO collection has six sunglasses: All In, Get Right, El Dinero, Empire, Reina and The Playa; the QuayXAROD collection has five styles: Poster Boy, Evasive, Hardware, Apollo and Still Standing.

Both collections were launched on Tuesday; this is the first major campaign the duo has been featured together.

The collection for Jennifer and Alex comes 11 days after they revealed they’re engaged.

On Sunday, March 9, Alex took to Instagram to announce their engagement, as he said ‘she said yes’ alongside a close up image of the incredible diamond engagement ring.

And Jennifer has finally shared her thoughts on Alex Rodriguez’s surprise proposal made in the Bahamas.

The beauty told People that they are in a state of bliss after the 43-year-old former baseball star gave her a 16-carat diamond ring.

‘We’re really happy,’ said Jennifer.

‘We have [an] appreciation for where we are in our lives today, and that’s what we’re enjoying the most,’ added Alex.

Alex has two daughters – Natasha, 14, and Ella, 10 – with ex-wife Cynthia Scurtis. Jennifer has twins Max and Emme, 11, with ex-husband Marc Anthony.

Alex proposed to his girlfriend of two years with an emerald cut ring, worth a reported $4.5 million.

The happy couple were vacationing in Baker’s Bay when he popped the question.

This mark’s Jennifer’s sixth proposal, fifth ring, and soon-to-be fourth marriage.

‘We’re constantly supporting each other in our individual endeavors and thinking about all the things that we can build together,’ Jennifer said.

And Alex said: ‘We are very grateful.’

Since the duo’s big news broke, the couple were marked with cheating allegations by former baseball star, Jose Canseco.

The Cuban-born talent, who is no stranger to interesting accusations, accused Alex of allegedly stepping out on Jennifer with his ex-wife, Jessica Canseco.

Jessica has since spoken out against the allegations, in a series of tweets on Twitter.

‘Those false accusations Jose is making are not true! she began. I have known Alex for many years and haven’t even seen him for over 5. I certainly did not sleep with him. I am friendly with both him and Jennifer. As for Jose he can keep playing with his Alien friends.’

‘In fact I don’t even get on twitter had to download app again and don’t watch tv and had no idea any of this was going on. Last time I saw Alex he was with Torrie [Wilson] and I brought my boyfriend over for dinner. We are just friends my god.’