Conversation so far:
What major event happened in the time period when Macy Gray released her second studio album?
The September 11, 2001 attacks happened in the time period when Macy Gray released her album, The Id, which may have negatively affected record sales
How was Macy Gray's third album taken by the public?
Despite rave reviews and a radio hit, Macy Gray's third album, The Trouble with Being Myself, was not as well received by fans
How did her third album not being well-received by fans affect Macy Gray?
How did Macy Gray's live album, Live in Las Vegas (2005), do?
Live in Las Vegas received generally negative reviews from music critics.
What was the title of Macy Gray's live album?
The title of Macy Gray's live album was Live in Las Vegas
What songs were on Macy Gray's live album, Live in Las Vegas?
Songs on Gray's live album include Sex-O-Matic Venus Freak, When I See You, Why Didn't You Call Me, Do Something, Demons, Sexual Revolution, I Try, and Sweet Baby
Did anything else happen to Macy Gray during that time frame?
Additionally, Gray was featured on Marcus Miller's 2005 album Silver Rain

Question: What did she do on the album?
Self-contained rewrite: What did Macy Gray do on Marcus Miller's album?