She seems to have surreptitiously watched her boyfriend host and sing and later joined him at the after-party.

The A Complete Unknown star confirmed he'd be performing Bob Dylan songs in his monologue, saying, "I'm so grateful Saturday Night Live is still doing weird stuff like this 50 years in!"

The fact that host Timothée Chalamet just earned an Oscar nomination for his role as Bob Dylan in “A Complete Unknown” raised the possibility, however slim, that Minnesota’s most celebrated artist might appear on the late-night show for only the second time in its 50-year history.

Timothée Chalamet performed two lesser-known Bob Dylan songs, in his own voice, as the musical guest as well as host of 'Saturday Night Live.'

When he attempted to use his monologue to deliver an awards speech he’d never had the chance to give, Kenan Thompson humorously interrupted. The camera then zoomed in on Chalamet’s unamused expression, as he maintained a convincingly deadpan, award-worthy glare.

But at first sight, Chalamet’s stint as the frontman of a Dylan cover band coinciding with his Best Actor campaign was less loosey-goose anything-goes ’70s style than akin to the more nakedly promotional Garth-Brooks-as-Chris-Gaines type of deal.