John 14:13-14 makes mention of praying to Jesus by Jesus Himself.
And I will do whatever you ask in my name, so that the Father may be glorified in the Son. You may ask me for anything in my name, and I will do it.--John 14:13-14
Acts 7:59 is an explicit mention of praying to Jesus
While they were stoning him, Stephen PRAYED, "LORD JESUS, receive my spirit."--Acts 7:59