After years of trying to break through internationally, the Russian singer Emin Agalarov has finally crossed over into the United States. Unfortunately, it wasn’t his music that did it.

Emin, who is known in entertainment by a single name, found himself thrust into the American spotlight this week not for his schlocky Europop dance tracks or his Las Vegas-indebted crooning of the standards, but because of his leading role in arranging Donald Trump Jr.’s meeting with a Russian lawyer thought to have damaging information about Hillary Clinton during the 2016 presidential campaign.

Rob Goldstone, a publicist for Emin, said that he handled the logistics of the sit-down at Trump Tower last year at the behest of the pop singer, 37, who is the son and business partner of the billionaire real estate tycoon Aras Agalarov. The Agalarov and Trump families were friendly because of past business collaborations, most notably in bringing the Miss Universe contest — then owned by Donald J. Trump — to Moscow in 2013. Plans to build a Trump Tower in the Russian capital were tossed around as well, though they fell through.