Klaymore

Klaymore is a Pittsburg based, heavy metal band. They sometimes sound like thrash metal bands, sometimes like Iron Maiden. I listened to their EP "Justifiably Pissed". They have so much energy in their songs. I like guitar solos, vocal melodies and lots of things. You should listen to them.

You can follow the band : https://twitter.com/klaymoremetal

Haster

Haster is a Metal/Hard rock band from CA. I listened to their album "Let It Go". First of all, i like the album cover so much. The band has great vocals, both brutal and clean and they sound so nice and melodic. I especially like the guitar work in the song "The Following". The band has an innovative sound and melodies which i like the most.
You can follow the band : https://twitter.com/Hasterband
You can listen the album from Spotify.

Four Nights Gone

Four Nights Gone is a band from NY. I listened to their EP called "Resilience" EP has got 5 songs including great melodies, nice vocals both clean and brutal combined. The songs got so many moods, sometimes they are sad, sometimes they are angry. You understand that the band tries to describe many things to you within the songs. I like the EP.  Looking forward to listen much more from them.

You can buy the ep : https://t.co/KLG869F8zR
You can follow the band : https://twitter.com/Fournightsgone

Unparalleled Height

Unparalleled Height is a metal band from Pittsburg. They say that they sound like Avenged Sevenfold, Bullet for my valentine etc. But i guess they will become a bigger band than any of this bands. I listened "Strength Through Silence" and all that i can say, i will buy the album. So should you do.
Great melodies, great vocals and a great record quality.

You can buy the album : https://itunes.apple.com/album/rise-of-the-voiceless/id732524318
You can follow the band : https://twitter.com/UPH_Official

Royal Jacks

Royal Jack is a rock band from USA. I listened to their song "Brakes" They have so much energy, so funny and look cool. They sound like rock and punk combined. The quality of the record is a nice one. And they have an award winning video for the song. I'd like to listen to a whole album written by them.

You can follow them : https://twitter.com/Royal_Jacks https://www.youtube.com/watch?v=j7PJ0DzApzM 

Metropolis

Metropolis is a progressive metal band from Scotland. They are currently writing an EP and i saw them on Twitter. They released a song called "Magnum Opus". It is a nice prog song includes nice clean guitars, some nice distortion parts and a great guitar solo. The song have a little jazzy tune, they mixed jazz and metal into a nice form. I look forward to listen to their EP.
You can follow them : https://soundcloud.com/ukmetropolis https://twitter.com/UKmetropolis

Haunting Confession

Haunting Confession is a heavy metal band from Germany. I listened to their Ep called A Lighter Heart. As they say, they sound like Avenged Sevenfold, Trivium etc. They have great melodies that i think that they sound like Iron Maiden and A7x, killer solos and insane drum working. But they dont rip off from any band, they are really an original band.
You can follow them : twitter.com/HauntConfession