Despite being nominated for two awards at this year's Grammys, the detention of rapper 21 Savage by US immigration authorities was barely mentioned by the assembled music royalty at the ceremony on Sunday.
Only Ludwig Göransson, the producer of Childish Gambino's This Is America, thanked Savage onstage while accepting the award for Record of the Year, and said the rapper "should be here".
Post Malone, nominated with Savage for two awards for Rockstar, was silent on the issue during his performance of the song - although he reportedly wore a Free 21 Savage t-shirt that no one could see.
Savage's co-manager, Kei Henderson, said she approached a number of music stars to give a shout out to the detained rapper during the awards night, but added "it just didn't work out that way".
Atlanta-based rapper 21 Savage, a British citizen, is being held by US officials due to an expired visa.
His legal team say that he arrived in the US from the UK in 1999, aged seven.
But the USA's Immigration and Customs Enforcement (ICE) service says the musician arrived in 2005 aged 12 and went on to overstay his visa.
21 Savage's lawyers concede that the 26-year-old doesn't have the correct documents, but say they expired when he was a child, "through no fault of his own".
Artists including Jay-Z, Cardi B, Meek Mill and Offset have called for his release.
Monday night saw Metro Boomin wear a Free 21 Savage shirt during his performance on The Tonight Show - and this time you couldn't miss it.