“Aitai” is the lead single off RADWIMPS newest album “2+0+2+1+3+1+1= 10 years 10 songs”. RADWIMPS stated in the description of “Aitai"s music video:

“Today, 10 years have passed since the Great East Japan Earthquake. I made a song this year as well. It’s a song called "Aitai”. The words that came out while thinking about the earthquake and envisioning the feelings of being separated from each other became a feeling that unexpectedly became familiar to us living in this corona disaster."