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Despite the recent news that she's split from husband Mike Comrie, Hilary Duff was in a great mood when X17 photographers snapped her heading in to a meeting on Tuesday morning.

Last night the 26-year-old singer/actress went to the Justin Timberlake concert with several pals, and earlier in the day she hung with her sister Haylie. Duff also took to her Twitter account to thank fans for their support over the last few weeks, writing, "Hi babies that I have followed recently! Love how you guys are so supportive and loving! its an HD love fest buuuut I can camp on twitter ... Allday so please don't get upset if I can meet all your needs :( a got a little nugget to take care of and work! But I love you guys so much."

Duff and Comrie announced their split earlier this month, and it seems as though they truly have been keeping things amicable for the sake of their son Luca. Still, we'd imagine it's quite an adjustment period for the former Disney star ... we're just glad to see that she's doing ok!