Katy Perry's 'Witness' Tour Postponed Due to Production Delays, Opening Acts Revealed

The pop star apologized to her fans for the &quot;inconvenience.&quot;<div class="feedflare"> <a href="https://feeds.etonline.com/~ff/ETMusic?a=6pGqTqeYo3c:-xssvA2RdIc:yIl2AUoC8zA"><img src="https://feeds.feedburner.com/~ff/ETMusic?d=yIl2AUoC8zA" border="0"></img></a> <a href="https://feeds.etonline.com/~ff/ETMusic?a=6pGqTqeYo3c:-xssvA2RdIc:dnMXMwOfBR0"><img src="https://feeds.feedburner.com/~ff/ETMusic?d=dnMXMwOfBR0" border="0"></img></a> <a href="https://feeds.etonline.com/~ff/ETMusic?a=6pGqTqeYo3c:-xssvA2RdIc:7Q72WNTAKBA"><img src="https://feeds.feedburner.com/~ff/ETMusic?d=7Q72WNTAKBA" border="0"></img></a> <a href="https://feeds.etonline.com/~ff/ETMusic?a=6pGqTqeYo3c:-xssvA2RdIc:V_sGLiPBpWU"><img src="https://feeds.feedburner.com/~ff/ETMusic?i=6pGqTqeYo3c:-xssvA2RdIc:V_sGLiPBpWU" border="0"></img></a> <a href="https://feeds.etonline.com/~ff/ETMusic?a=6pGqTqeYo3c:-xssvA2RdIc:qj6IDK7rITs"><img src="https://feeds.feedburner.com/~ff/ETMusic?d=qj6IDK7rITs" border="0"></img></a> </div><img src="https://feeds.feedburner.com/~r/ETMusic/~4/6pGqTqeYo3c" height="1" width="1" alt=""/>