5 Seconds of Summer's guitarist Michael Clifford is known for his ever-changing hair colors.

5 Seconds of Summer Working With John Feldmann Once Again On Forthcoming Studio Album

The Aussie has rocked the rainbow, essentially, when it comes to his tresses adorning various colors.

Since December his hair color has evolved from a very prominent red/orange color to a very prominent blonde. A silvery shade also appeared on his head in recent months. Then there was a bit of electrifying blue thrown in as well.

Luke Hemmings Comes Down With Laryngitis While On Tour

The 5SOS stud has switched up the color once again!

Over the weekend, he teased fans on Twitter by tweeting, "Dying my hair a color today, guess what one?"

He then showed off his black locks in an Instagram picture a few hours later.

back in black. A photo posted by Michael Clifford (@michaelgclifford) on May 24, 2015 at 8:19am PDT

"[B]ack in black," he shared in the caption.

The punk rocker has dyed his hair black before, but it has typically been mixed with other colors such as blonde at one time and purple at another.

This is a much more subdued look for the 19-year-old, but it's totally fitting for his rock star lifestyle especially after debuting it with a leather jacket on.

Earlier this month, he attempted to dye his hair "white and black," but it didn't go over well, yet he finally seems to have gotten the black part down perfectly.

Do you like Clifford's newly colored tresses? Or do you miss seeing his more lively colored locks?

Tags: 5 seconds of summer Music