Heidi Klum is now Heidi Samuel.

On Friday, a Los Angeles commissioner approved the German supermodel’s application to adopt the surname of her singer hubby, crooner Seal — whose real name Seal Henry Olusegun Olumide Adeola Samuel. The couple tied the knot more than four years ago, and Heidi gave birth to their fourth child, daughter Lou, last month.

In her filing, Klum, 36, gave a one-word reason for the change: Marriage.

Meanwhile, Heidi wowed fashion fans when she walked the runway for the annual Victoria’s Secret Fashion Show in New York City Thursday night — just six weeks after giving birth!