This past January, buzzworthy trio London Grammar made its US television debut on NBC’s “Late Night with Jimmy Fallon.”

This March, the group made a follow-up splash on ABC’s “Jimmy Kimmel Live.”

Next week, the act will check off the final American late-night broadcaster on its list when it appears on CBS’ “Late Show with David Letterman.”

The network announced that London Grammar will serve as the musical guest for the April 8 edition of “Letterman.” Rob Lowe and Brooklyn Decker will appear as interview guests.

CBS also updated its listing for April 2 with confirmation that Martha Stewart and musical guest Joseph Arthur will appear on the nightly talk show.

Upcoming listings for “Late Show” follow:

Tuesday, April 1 Actress Kristin Chenoweth; comedian Amy Schumer; musical guests JOHNNYSWIM (n)

*Wednesday, April 2 Style guru Martha Stewart; musical guest Joseph Arthur (n)

Thursday, April 3 Actor Johnny Depp; musical guest Kevin Drew (n)

Friday, April 4 Actor Billy Crystal; actor Tony Hale; musical guest LiV Warfield (n)

Monday, April 7 Guests TBA

Tuesday, April 8 Actor Rob Lowe; actress Brooklyn Decker from the new CBS comedy series “Friends With Better Lives”; musical guests London Grammar (n)