Who wrote The Tonight Show theme song during Johnny Carson's time as host?

Anka launched a wildly successful songwriting career from the casinos and supper clubs of Las Vegas and Florida. He wrote the theme song for The Tonight Show during Johnny Carson's reign, which is estimated to have been played some 1.4 million times. At the height of Carson's popularity, Anka earned $800,000 to $900,000 annually in royalties alone from that one song.Other career highlights include writing "She's A Lady," Tom Jones's biggest hit, and befriending Frank Sinatra and writing "My Way," the singer's valedictory tune.