Sen. Pat Roberts' 'Let it Go' ringtone goes off mid-hearing

WASHINGTON, April 16 (UPI) -- Frozen fever has hit Capitol Hill.

Sen. Pat Roberts, R-Kansas, was in middle of a Senate Finance Committee hearing when his cellphone went off with a "Let it Go" ringtone.

The committee was discussing U.S. tariff policy when the popular song started playing, interrupting Agriculture Secretary Tom Vilsack.

"Aw, come on," Roberts said when the ringtone sounded.

He recovered from the incident with a laugh from the room.

"Just let it go mister," he joked. "Sorry about that."

Roberts addressed the incident on Twitter, saying the ringtone was for his grandchildren.

Somebody had to tell the Obama Administration to "Let it go." #forthegrandkids

— Pat Roberts (@SenPatRoberts) April 16, 2015