Ashlee Simpson claims her six-year-old son Bronx already "writes little songs."

Evan Ross and Ashlee Simpson

Evan Ross and Ashlee Simpson

The 31-year-old singer says she wouldn't be surprised if her and rocker ex-husband Pete Wentz's little boy ends up following in their footsteps by carving out a career in the music industry.

She said: "He's so into music. He loves to dance around and he writes little songs. They're good! It's so cute."

Bronx is gearing up to celebrate his seventh birthday next month and Ashlee's husband Evan Ross, 27, thinks they should get him the new video game 'Guitar Hero Live' so he can continue practicing.

She also told PEOPLE.com: "He's super into video games and this one is perfect for him."

The 'Pieces of Me' singer and 'Hunger Games' star Evan, who tied the knot in August 2014 at his mother Diana Ross' home in Connecticut, welcomed their first child Jagger Snow into the world on July 31 and she previously revealed Bronx loves helping her take care of the 11-week-old tot.

She said: "He dances for her and entertains her. Bronx is such a good big brother. He's a pro."