SharePoint 2010 List datasource - How do you parse a multiple selection lookup column from the SP list

I am consuming a SP 2010 list that has a lookup column that is bound to another list and allows for multiple selections.  When I pull the data into SSRS 2008 R2, the list of items presents as:

Item 1;#2;#Item 2;#3;#item 3;#4;#item 4

How would I parse this in SSRS 20008 R2 to display as:

Item 1, Item 2, item 3, item 4

Do I use an expression?  Or do I parse it in the inbound dataset?