Wikipedia:Articles for deletion/All Join In
The links indicated above (except AllMusic) seem reliable. I also found some reliable sources which talk about the album, whether fully or briefly: https://qconline.com/life/kenny-loggins-treasures-family-in-long-career/article_6fb3d931-4227-52f5-a33d-6612d6677800.html, https://globegazette.com/news/local/loggins-with-kids-messina-all-join-in/article_888a0330-07d8-5b05-9050-a8f96e0299de.html, http://musingsfromme.com/review-kenny-loggins/, https://www.lehighvalleylive.com/music/2011/06/kenny_loggins_discusses_soundt.html, https://connected2christ.com/2009/08/music-reviewkenny-loggins-all-join-in/, https://www.billboard.com/articles/columns/rock/6640904/kenny-loggins-childrens-music-penn-zero-part-time-hero, https://www.independent.com/2009/10/01/loggins-messina-stage-sit-in/ and https://lasvegassun.com/news/2009/mar/12/heart-hand-loggins-rides-danger-zone/. With these, the article is good enough to pass 
— User:Superastig, 16:00, 2 September 2020 (UTC)
Stance: keep
Cited policy: WP:NALBUM (Wikipedia:Notability)