"Greeting cards, flowers, they all fall flat because they're kind of impersonal," Atout said on Friday's episode of "Shark Tank" on ABC.

The business, Atout said, took off more quickly than he ever expected.

After four months, both co-founders left their day jobs — Hodges was a Blue Bottle Coffee barista, and Atout was a production manager at Amtrak — to focus on the growing business full-time.

At the time of the "Shark Tank" episode's taping, the co-founders said Songlorious was on pace to bring in $2.5 million this year.

On the episode, the couple landed an additional $500,000 from four of the five Sharks — Mark Cuban, Daymond John, Kevin O'Leary and guest Shark Peter Jones, a star investor from British sister show "Dragon's Den" — in exchange for a 40% stake in the company.

The couple tried to counter the offer, asking for $800,000 in return for 40% of the company's equity.

"Think about the amount of money you would have to pay to get four Sharks like us," Jones said.