Up in smoke! Justin Bieber picks up some vaping supplies at an E-cigarette spot while showing his polished rocker style

He may have not made GQ's Most Stylish Men Alive list, but looks like the pop star is determined to make the cut next year.

While Justin Bieber is often lampooned for his low crutch pant-wearing days, the 21-year-old showed he can keep up with Hollywood's most fashionable as he headed out in the Westwood area of Los Angeles, California, on Wednesday.

Rocking a polished rocker style, the Biebs went about his business running errands around town.

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Stylish outing: Justin Bieber showed he can keep up with Hollywood's most fashionable as he headed out in the Westwood area of Los Angeles, California, on Wednesday

Stylish outing: Justin Bieber showed he can keep up with Hollywood's most fashionable as he headed out in the Westwood area of Los Angeles, California, on Wednesday

The Baby singer was first spotted headed to car rental business before he then stopped by and E-cigarette spot.

According to the Vapor Spot, the pop star picked himself up what is known as a vape mod and some vape juices to smoke from it.

The star is no doubt trying to avoid traditional cigarettes in a bid to stop his singing voice become less pop and more like an old Blues singer.

Cool but casual: The star left the drop crotch pants at home in favour of a pair of straight leg dark denim jeans which he wore with a long raw edged black T-shirt and a dark flannel shirt with its sleeves cut off

Cool but casual: The star left the drop crotch pants at home in favour of a pair of straight leg dark denim jeans which he wore with a long raw edged black T-shirt and a dark flannel shirt with its sleeves cut off

Smoke supplies: The Baby singer was first spotted headed to car rental business before he then stopped by and E-cigarette spot and grabbed a vape mode and juices

Smoke supplies: The Baby singer was first spotted headed to car rental business before he then stopped by and E-cigarette spot and grabbed a vape mode and juices

For his day of smoke and car errands, the star left the drop crotch pants at home in favour of a pair of straight leg dark denim jeans which he wore with a long raw edged black T-shirt and a dark flannel shirt with its sleeves cut off.

The short sleeved flannel look is a new favourite of the star as besides the blue and green one he wore Wednesday, he also has a red one which he wore over the weekend in Las Vegas at the boxing match between Adrien Broner and Shawn Porter.

Big weekend: The 21-year-old partied in Las Vegas over the weekend, shocking fans at one party, jumping up on the mic and started singing while doing shots at Drai's Beach Club on Saturday
Big weekend: The 21-year-old partied in Las Vegas over the weekend, shocking fans at one party, jumping up on the mic and started singing while doing shots at Drai's Beach Club on Saturday

Big weekend: The 21-year-old partied in Las Vegas over the weekend, shocking fans at one party, jumping up on the mic and started singing while doing shots at Drai's Beach Club on Saturday

Taking his look to the next level, the Beauty And The Beat star added another one of his favourites - a black U.M x Bailey wool fedora - as well as a pair of blue denim slip on sneakers.

The star looked rather fresh faced and awake considering he spent a big weekend in Vegas heading to the fight, as well as the Electric Daisy Festival and pool party hopping.

The 21-year-old megastar shocked fans at one party, jumping up on the mic and started singing while doing shots at Drai's Beach Club on Saturday. 

Fashion fav: The short sleeved flannel look is a new favourite of the star as besides the blue and green one he wore Wednesday, he also has a red one which he wore at the boxing match between Adrien Broner and Shawn Porter on Saturday

Fashion fav: The short sleeved flannel look is a new favourite of the star as besides the blue and green one he wore Wednesday, he also has a red one which he wore at the boxing match between Adrien Broner and Shawn Porter on Saturday

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