Super Saiyan 7 is the seventh form of Super Saiyan a Saiyan can take after Super Saiyan 6. When a Super Saiyan 6 goes out of control and continues to gain a lot of energy while angry, the energy coming out of the top of their head will explode and begin pouring out of their entire body. This turns their golden hair crest and golden top aura into entirely golden hair and an entirely golden aura.
A Super Saiyan 7 looks exactly like a Super Saiyan 6 except the energy pouring out of the head is pouring out of the entire body, turning their entire hair from their head to their body and even their tail into golden fur. Their aura is pure golden as well.
Goku was the first to obtain Super Saiyan 7. He did so while fighting dark TRUNKS while going out of control with anger and power.