Kourtney Kardashian has transformed her look many times over the years, but she's undoubtedly thrilled to don maternity gear once again after many months of trying. Her unexpected announcement at her husband's concert was both heartwarming and appropriate. Blink-182 fans immediately recognized her sign as being a call-out to the band's video for "All the Small Things." As seen here on YouTube, the video features the group performing in front of a horde of shrieking fans, many of whom are holding up signs. At 2:29, a young woman is seen waving a poster board reading "Travis I'm Pregnant." (Kardashian posted the shot to her Instagram Stories, just in case there was any doubt.)

The expectant parents aren't the only ones thrilled by the news. Barker's daughter Alabama posted her own Story, using her handle photo as an image. "Kourtney is pregnant," she captioned, with emojis of a big-eyed smile and hearts. "lil bama on the way." In her second account, she added, "Baby #7." Big sis Kim Kardashian posted clips of the music video sign and Kourtney's homage, also with emojis indicating joy and love. 

This will be Kourtney's fourth child; she has two sons and a daughter by her ex, Scott Disick. Barker is dad to 19-year-old Landon and 17-year-old Alabama by Shanna Moakler and stepdad to Moakler's daughter Atiana. As of this writing, no details have yet been released about the due date or gender of the newest addition to the Kravis clan.