A pop-up straw having an upper buoyant section and a lower flexible section is mounted within a container. When the container is opened, the upper end of the pop-up straw rises through the opening. The straw is particularly useful with a push in tab easy open end container. A collar which holds the upper portion of the straw is mounted below the opening and just below the downward extension of the tab. Opening the tab pushes downward against the upper end of the straw until the tab clears the upper end of the straw. The upper end of the straws then pops up through the opening.