CBS Studios International, along with Fulwell 73, today officially put out the “Available” sign on Carpool Karaoke for the international market.

Carpool Karaoke is based on the digital hit franchise that’s part of CBS broadcast network’s Late Late Show with James Corden. For the international market, each 30-minute or 60-minute episode would see the show’s host pick up a different singer or celebrity and drive them in a Carpool Karaoke car, specially fitted with state of the art cameras.

This morning’s clarion call comes little more than two months after word broke that CBS Studios, Corden and Fulwell 73 were shopping a Carpool Karaoke series domestically. Sources indicate the show may be heading to VH1; a spokesperson for the network had no comment. UPDATE: No way, no how — say informed sources of that VH1 report.

Corden will not host, but would make appearances in the project, looking to cash in on the franchise’s popularity (in much the same way The Tonight Show Starring Jimmy Fallon’s franchise Lip Sync Battle got spun off into a series on Spike).

The CBS late-night series’ segment is the most social franchise to come out of U.S. late-night TV, with about 600 million YouTube views since its launch a year ago. Among those who have participated: Adele, One Direction, Elton John, Justin Bieber, Jennifer Lopez, Stevie Wonder and, most recently, Gwen Stefani. Adele’s Carpool Karaoke appearance has clocked 105M YouTube views, and holds the YouTube record for the most watched late-night clip. Gwen Stefani’s Carpool Karaoke, which debuted May 4, broadened the franchise with the addition of backseat stars George Clooney and Julia Roberts; it has clocked about 25M Youtube views to date.

In today’s announcement, Paul Gilbert, SVP International Formats at CBS Studios International, boasted that “requests for the format have been overwhelming.” Added Ben Winston, Late Late Show EP and co-director of production company Fulwell 73: “This is a very exciting format, one which gets the best interviews, and fun, out of every guest that appears, due to its most intimate setting.” Some credit also is due to Corden driving the segments, in every sense of the word.

In early March, by way of promoting the format, CBS aired a primetime Carpool Karaoke primetime special, featuring clips of past segments and a new one featuring Lopez. While not a top 5 18-49 performer that night, and finishing No. 2 in its time slot, the greatest-hits version of the viral hit scored 4.26 million viewers in Live + Same Day viewing.