Ace Frehley sang lead vocals on several KISS songs, contributing significantly as both a guitarist and vocalist. Some of his key KISS songs with his lead vocals include:

• "Shock Me" (from the album Love Gun, 1977) – This was Ace Frehley's first lead vocal on a KISS song and one of his best-known tracks, inspired by a near-electrocution incident on stage.
• "Rocket Ride" (from Alive II, 1977) – Another popular song with Ace singing lead vocals.
• "Cold Gin" (from the debut album Kiss, 1974) – Ace wrote the song and sung originally in live performances, though Gene Simmons often sang it live later.
• "Rip It Out," "Speedin' Back to My Baby," "Snow Blind," "Ozone," "What's on Your Mind?" and "New York Groove" (from Ace Frehley's 1978 solo album, though this album was released during KISS's solo record period).
• "Into The Void" (from the Psycho Circus album, 1998).
• Other songs where Ace sang lead include "Talk to Me," "Two Sides of the Coin," and "Torpedo Girl" from various KISS albums.

Ace Frehley was recognized for gradually increasing his lead vocal role, especially in the band's prime years, and is celebrated for the distinctive voice and guitar style he brought to these iconic songs.