Lykke Li showed up on the Letterman Show last night to perform Silent My Song off of her second album, “Wounded Rhymes.” Check out Li (with Princess Leia ‘do) with her tour mates, fellow Swedes First Aid Kit, singing shimmering backing vocals. Check it out below courtesy of The Audio Perv. We agree wholeheartedly (as usual) with Letterman, whose terse review was: “lovely“, “beautiful,” and “haunting.”