A Silicon Valley-based freight-booking startup announced this morning that U2 band members Bono and The Edge have “invested in the future of trucking by supporting Convoy.”

According to a blog post published by Convoy this morning, Bono and The Edge have been investors in Convoy since sometime in 2017.

Though the investment may seem to be an odd choice, Dan Lewis, Convoy CEO, notes that “Bono and The Edge know more about trucking than you might think. They’ve spent most of their adult lives touring the world with U2, and trucks are an essential part of moving the show from city to city. When they heard about Convoy, they loved that we are using technology to empower millions of truckers to grow their businesses while at the same time reducing empty miles and waste.”

For U2’s Joshua Tree tour in 2017, three sets of 16 trucks moved three different copies of the stage from location to location while another 30 trucks carried the band’s light, sound and video equipment.

Convoy allows shippers to use a website or mobile app to book trucks to move freight “in a way that improves truck drivers’ livelihood and reduces the 7% of all greenhouse gases that come from trucking,” according to the company.