Sheldon's most iconic The Big Bang Theory song makes a comeback in a new Young Sheldon season 6 clip. The socially-inept genius had a lot of interesting quirks and oddities in The Big Bang Theory, and some of them started during childhood. That included his fixation on the song "Soft Kitty," which his mom sang to him whenever he was sick.

Almost four years since The Big Bang Theory ended, the prequel brings back "Soft Kitty" in the most adorable and surprising way, as seen in a new Young Sheldon season 6 episode 15 clip shared by Spoiler TV. Watch it below:

The Young Sheldon episode titled "Teen Angst and a Smart-Boy Walk of Shame" will pick up directly after Mandy gave birth to baby Constance. It will also see the fall-out from Mary and George's massive argument in the hospital when they caught each other spending time with Pastor Rob and Brenda Sparks, respectively.

Related: Young Sheldon Further Cheapens Its Big Bang Theory Crossover

How Baby Constance Impacts The Rest Of Young Sheldon Season 6

Mandy holding baby Constance back at home in Young Sheldon

Although Mandy's Young Sheldon season 5 pregnancy was unplanned and came with its own set of issues for the Cooper family, baby Constance's arrival has been a cause for celebration. She is named after Meemaw, who has been nothing but supportive throughout the whole experience, even helping Mandy and Georgie with some expenses.

Constance's arrival will also be a buffer between the troubled Mary and George as Young Sheldon season 6 deals with their deteriorating marriage. Despite seemingly fixing their relationship during the first half of the year, things have started to quickly spiral between the couple, especially following their massive fight while Mandy was in labor.

Finally, now that their daughter is here, perhaps Georgie and Mandy will finally figure out what their future is going to look like, whether they get back together or just co-parent. They clearly still have feelings for each other, which makes the reconciliation so much easier. As for Sheldon, the clip pretty much sums up his role in Constance's life. Regardless of how things go in Young Sheldon season 6, however, it's safe to say that they will continue to be a steady presence in the baby's life.

More: Young Sheldon Season 6 Episode 14 Sets Up 5 TBBT Storylines

Source: Spoiler TV