Format Text of Formula Field

I have a Formula that looks similar to this:

Select {FieldName1}
Case "A":
"A: " & {FieldName2}
Case "B":
"B: " & {FieldName3}
Case "C":
"C: " & {FieldName4}
Default:
"D: " & {FieldName5};
I want the "A:", "B:", etc to be Bold and the FieldName to be Normal (not Bold). Is there a way I can accompish this?Found a work around...

I created 2 formulas and put both formulas into a Text Object. I Bolded one and not the other. The first Formula determined what the Label woud say ("A:", "B:", etc), the second Formula determined which Field would display.