* A touring production: Rent has had numerous national and international tours throughout its run and even after the original Broadway production closed. It's possible you're thinking of one of these tours, which might have been running in 2009.
* A revival: While the original Broadway production closed, Rent has had several revivals, including a 2009 production in the West End in London. This could be the "2009 tour" you're remembering.
* A special performance: Rent has also had several special performances, like benefit concerts or anniversary events, that may have occurred in 2009.
* A misremembered date: It's possible the year you're thinking of is slightly off.
To get more specific information, you'd need to provide some more context. What kind of tour are you thinking of? Do you remember the city or the venue? This would help determine which particular performance or event you're recalling.