Mad about the bass! Jon Hamm looks dapper as always as he joins forces with Meghan Trainor at charity event to help Charlotte and Gwenyth Gray

By Chelsea White For Dailymail.com

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Now that Mad Men is over Jon Hamm has a lot more time on his hands - so he is using his star power to bring some goo into the world.

The 44-year-old actor along with singer Meghan Trainor lent their support to the Charlotte & Gwenyth Gray Foundation's Entertainment Industry Benefit in Los Angeles, California, on Thursday night.

Dressing in classic black, the two stars set a stylish tone for the charity evening.

Helping out: Jon Hamm long with singer Meghan Trainor lent their support to the Charlotte & Gwenyth Gray Foundation's Entertainment Industry Benefit in Los Angeles, California, on Thursday night

Helping out: Jon Hamm long with singer Meghan Trainor lent their support to the Charlotte & Gwenyth Gray Foundation's Entertainment Industry Benefit in Los Angeles, California, on Thursday night

Just like her songs, Meghan celebrated her curves in a saucy but still appropriate all-black ensemble.

The All About That Bass songstress stepped out in a tight high-waisted skirt with a matching suit jacket that fastened just under the bust line.

But taking her look for business blah to surprisingly sexy, the 21-year-old teamed the skirt with a satin bustier which drew attention to her curves without leaving her with too much cleavage on display.

Simple style: Dressing in classic black, the two stars set a stylish tone for the charity evening with Meghan wearing a sexy but not over-the-top bustier 

Simple style: Dressing in classic black, the two stars set a stylish tone for the charity evening with Meghan wearing a sexy but not over-the-top bustier 

Musical magic: The star entertained the crowd with one of the most acoustic performances one can - namely just herself singing with a ukulele

Musical magic: The star entertained the crowd with one of the most acoustic performances one can - namely just herself singing with a ukulele

Ensuring she stayed understatedly sexy, the songstress went without lots of accessories and jewellery.

The pop star also kept her makeup minimal and wore her long blonde locks out in natural looking soft waves.

Meghan entertained the crowd with one of the most acoustic performances one can - namely just herself singing with a ukulele.

Speaking out: Jon also got up to the microphone, but skipped the song and dance in favour of a passionate - and very animated - speech
Speaking out: Jon also got up to the microphone, but skipped the song and dance in favour of a passionate - and very animated - speech

Speaking out: Jon also got up to the microphone, but skipped the song and dance in favour of a passionate - and very animated - speech

Well suited: For his night out, the Mad Men star wore a classic black suit with a matching shiny black skinny tie, which he paired with a blue shirt

Well suited: For his night out, the Mad Men star wore a classic black suit with a matching shiny black skinny tie, which he paired with a blue shirt

Jon also got up to the microphone, but skipped the song and dance in favour of a passionate - and very animated - speech.

For his night out, the Mad Men star wore a classic black suit with a matching shiny black skinny tie, which he paired with a blue shirt.

The benefit was to help raise important funds for the Charlotte & Gwenyth Gray Foundation which was set up by the two little girls' father Gordon - who produced such films as Secretariat, McFarland, USA and Million Dollar Arm.

Important cause: Jon made sure to speak to Gordon Gray whose daughters the night was raising money for

Important cause: Jon made sure to speak to Gordon Gray whose daughters the night was raising money for

Goal: Gordon, seen here with singer Becky G, is trying to raise close to $12 million to help fund research and treatment into neurodegenerative disorder called Batten Disease, which affects his little girls

Goal: Gordon, seen here with singer Becky G, is trying to raise close to $12 million to help fund research and treatment into neurodegenerative disorder called Batten Disease, which affects his little girls

This month celebrities have rallied around the Grays - which also includes Gordon's wife Kristen - after the couple found out their two daughter's suffered from a rare fatal neurodegenerative disorder called Batten Disease.

Charlotte, age 4, and Gwenyth, 20 months, have a form called late infantile NCL, which tragically slowly causes blindness, loss of muscle coordination and seizures and is usually fatal between the ages of eight and 12.

Already some of Hollywood's biggest names have asked their fans to donate just one dollar so that they can raise $12 million to fund research on developing treatments.

Fight against time: Charlotte, age 4, and Gwenyth, 20 months, have a form called late infantile NCL, which tragically slowly causes blindness, loss of muscle coordination and seizures and is usually

Fight against time: Charlotte, age 4, and Gwenyth, 20 months, have a form called late infantile NCL, which tragically slowly causes blindness, loss of muscle coordination and seizures and is usually

Sadly it is a battle against time with Charlotte already showing signs of the disease but her parents want to give hope not to just their girls but also others affected by the rare condition.

Julia Roberts this week revealed she had designed a necklace with jewellery designer Robin Renzi of Me&R to try to help the girls, while stars like Jena Dewan-Tatum, Mark Wahlberg Jennifer Lawrence and Gwyneth Paltrow have also lent their support.

 

Meghan TrainorJon Hamm

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