I'm watching #WhiteCollar S02E02, and somebody plays a classical tune. I instantly recognized it as a tune used in the first trailer for Godzilla: #KingOfTheMonsters.

https://youtu.be/wVDtmouV9kM

https://invidio.us/wVDtmouV9kM

Turns out, it's Clair De Lune by Claude DeBussy.

https://www.tunefind.com/show/white-collar/season-2/5925

https://youtu.be/fLqi5MDMDNw

https://invidio.us/fLqi5MDMDNw