Harry Styles delighted fans by transforming into Grease rebel Danny Zuko for Halloween.

The pop sensation, 28, donned a jet black hairstyle, edgy tank top, and leather jacket as he dazzled fans attending his Harryween concert in Los Angeles on Monday.

Styles looked as if he could have been a member of the T-Birds as he shook it and grooved it just like John Travolta in the hit musical film.

To the delight of his screaming fans, Harry danced exactly as Travolta did and busted out several memorable moves on stage.

He even sensually ran his hands through his hair, much like Danny did in the musical.

In true commitment to the role, Harry even did the hand jive – the dance all of Rydell High was doing at their school dance.

Unlike the T-Birds, however, Harry’s top and jacket were customized just for the star, with his tank top reading ‘Harryween’ in red.

You’re the one that I want! Styles had fans in the palm of his hand as he channeled the iconic bad boy 

Classic film: John Travolta played Zuko in the hit 1978 musical film also starring the late Olivia Newton-John 

Leader of the pack! Unlike the T-Birds, Styles wore a custom tank top emblazoned with ‘Harryween’ 

The pianist appeared to be dressed as Coach Vince Calhoun and his guitarists wore Pink Lady inspired jackets.

One of the musicians was even dressed up like the girls in the Beauty School Dropout scene with her silver smock and head full of silver curlers.  

As wild as the crowd went for Harry, the room went quiet as Harry serenaded them the beloved track Hopelessly Devoted to You.

Crowd pleaser! Fans went wild at the sight of Styles on stage 

Class act! Even his bandmates were dressed like characters from the musical, and his pianist appeared to be dressed as the coach 

He had fans in the palm of his hand while singing the love song, however fans did chime in for parts of the iconic track. 

The Grease look is a popular costume worn by many fans on…